March 22, 1911.

Dear Sir:-

I thank you for your kind interest in the Yale Expedition
to Peru, expressed in your letter of March 21.

At present there does not seem to be anything further
to be done than to raise the necessary funds for the expedition.

A full account of our plans is to be published this
week in the Alumni Weekly.

Sincerely yours,

Daniel D. Bidwell, Esq.,
Hartford Times Office,
Hartford, Conn.

March 23, 1911.

Dear Dr. Keltie:-

I am extremely disappointed that the Council has refused my request for the loan of instruments.

I fear that the size of the University's endowment has misled you into the belief that the University can easily afford to equip geographical expeditions. Unfortunately the demands on the University's resources for the more strictly academic work of teaching are too large to allow it to make appropriations for geographical work. The University is willing, however, to continue the salaries of all members of the various faculties who will go on the expedition, and it gladly gives them leaves of absence and provides teachers to take their places during the time they are away. All additional expenses, however, have to be paid out of a fund which I am now endeavoring to raise. Every instrument that we have to buy means so much less available for assistants in our archaeological and geographical survey.

Perhaps the state of our Universities here will be more readily understood or appreciated if I mention the fact that although Harvard University has nearly twice the endowment that Yale has, they ran behind on their expenses last year over 6,000 £, a deficit which had to be provided for by special gifts.

All expeditions that are sent out from Harvard have to be provided for by funds raised specially for the occasion through public subscription.

ADDRESS ALL COMMUNICATIONS TO
"SUPERINTENDENT" COAST AND GEODETIC SURVEY,
WASHINGTON, D. C."

Department of Commerce and Labor
COAST AND GEODETIC SURVEY
Washington

March 23rd 1911.

Dr. Hiram Bingham,

Yale University.

Dear Sir:-

I understand that I have been recommended to you, as the
result of correspondence with the President, for topographer to
your proposed expedition to Peru.

I take the liberty of communicating with you directly as
it is important, for various reasons, that I should know as soon
as possible whether you will accept my services. The chief rea-
son for my anxiety in this matter is that I was to have charge
of the topographic work on one of the parties in the Canadian
Boundary Survey this coming season. The position is being held
open for me in case you decide against me; but as the parties
will soon be going into the field it will be necessary to find
a substitute in case I am to go with you, and this may take some
time. Naturally, in view of the consideration that has been
shown me, I am anxious that the work in the survey shall not
suffer on my account.

If you can favour me with an early decision it will be much
appreciated both by my superiors and myself.

P.S. I have just received a copy of your more detailed plans of the expedition and am very much interested.

I am anxious, in the case I am to join your expedition, to prepare myself as far as possible in the short time remaining by studying Spanish and informing myself about the country and its archaeology.

March 23, 1911.

Dear Mr. Huntington:-

As you know, the Yale Corporation has approved my plans for an expedition to Peru. We expect to leave New Haven on the 10th of June and be gone until December 18th, spending five months in the field, doing geographical, archaeological and historical exploration. We expect to make a cross section of the Andes through a country that has never been scientifically explored, and only mapped in the rudest possible way some fifty years ago. The party will probably consist of a physiographer and geologist, a naturalist, a skilled topographer, an assistant topographer, and possibly a surgeon, besides the director.

There are four problems before us. The first is: How far into the Amazon jungle did the Incas carry their civilization? I am convinced that there are more Inca ruins to be discovered near Choquequirau, and particularly on the North slopes of the glacier clad peaks which separate Choquequirau from the Urubamba Valley. Dr. Faraboo, who led the Harvard expedition into Peru three years ago, went down this valley, and confirms my opinion that the region which we propose to enter is one of the most important unexplored archaeological fields in Peru. We shall probably spend about two months and a half in this region, doing everything we can to visit any ruins that are reported, particularly in the Vilcabamba valley where the last Inca lived before he escaped from the Spaniards.

The second is: A reconnaissance of the 73d meridian from the Amazon valley to the Ocean, a distance of perhaps three hundred miles.

A.M.H.-2

This reconnaissance, taking about a month, will include physiography, geology, archaeology, etc. The region is an interesting one historically, and in it the great General Sucre campaigned in the weeks preceding the battle of Ayacucho, which has been called the "Yorktown of South America". In it also lies the rich sugar region of Abancay, and the celebrated ruins of Choquequira, which I visited on my last journey to Peru.

Third: Mount Coropuna, a volcanic cone with a magnificent ice cap. Few people have ever heard of it, but some believe it to be the highest mountain in South America. Professor Bandalier is inclined to the belief that it is over 23,000 feet high. If possible we shall climb the mountain. If not we shall content ourselves with determining its altitude instrumentally and making a good map of it. There are several villages near the mountain which offer an interesting field for the study of human geography.

Fourth: About forty miles Northwest of Mount Coropuna is Lake Perinacoches, which is practically unknown and unexplored. It is our plan to take along a folding of no use to be able to make a bathymetrical survey of the lake and a rough survey of its shores. We expect also to determine the latitude and longitude of various points.

As you will see, it is the object of this expedition to explore a portion of Peru which is not at present known to science. The amount and kind of information which we shall try to gather will be limited only by the number and the individual ability of the men who compose the expedition, and by the time.

I have succeeded in raising nearly $6,000, or enough to pay for

A.M.H.-3.

the expenses of three members of the party, and a little more.

The University has given leave of absence to three members of the faculty and will continue their salaries while they are away, but cannot afford to help us more than that, although the authorities are enthusiastically in favor of the expedition.

In order to carry out our plans and make the expedition a complete success, we need between $4,000 and $5,000 more. Do you feel like helping us to the extent of $1,000? All monies are to pass through the hands of the Treasurer of Yale University, who will be responsible for seeing that they are properly expended.

It may interest you to know that a classmate of mine has given $1800, which will pay the entire expenses of one member of the expedition. Another man who was in College with me, in the class ahead of me, has given a similar amount. I have agreed to do the same.

The geologist and geographer will be Professor Isaiah Bowman, who as you know was the leader of a Yale Expedition to South America in 1907. If I can get the money it is my plan to let him stay longer than the rest of the party, in order to go down into Bolivia with a topographer and connect up his former work in the central Andes with what he will do in Peru.

Hoping that you will see your way clear to assisting this expedition, I remain,

March 23, 1911.

Dear Sir:-

A copy of your letter of March 17, to Mr. Norton, relative to my request for a topographer for the Yale Peruvian Expedition, has been forwarded to me.

I should like to inquire further regarding the qualifications of Mr. Kai Hendriksen, whom you recommend. If you can, without too much trouble, tell me of his training and experience, I should be very much obliged.

I should also like to inquire whether it would be possible for him to borrow the necessary instruments, including a theodolite, from the Coast and Geodetic Survey, for the purposes of this expedition?

I should also like to inquire whether it would be possible for him to extend the time of his connection with the expedition from six months to eight months, in case our geologist and geographer should decide to continue his work in the Andes South into Bolivia and Northern Chile, all his expenses of course being met?

We have two or three topographers in view and are anxious to get the man who is best qualified to do this work. We are particularly desirous of establishing the latitude and longitude of a number of places that have never been properly located on the map, but in addition to this we also need the qualification of being able to do the ordinary topographical reconnaissance work

March 23, 1911.

My dear Aunt Louise:-

You have perhaps seen in the papers some reference to a
Yale Scientific Expedition to Peru, of which I have been appointed
the director.

We expect to leave New Haven on the 10th of June, and be gone until December 18th, spending five months in the field, doing geographical, archaeological and historical exploration. We expect to make a cross section of the Andes through a country that has never been scientifically explored, and only mapped in the rudest possible way some fifty years ago. The party will probably consist of a physiographer and geologist, a naturalist, a skilled topographer, an assistant topographer, and possibly a surgeon, besides the director.

There are four problems before us. The first is, how far into the Amazon jungle did the Inca carry their civilization? I am convinced that there are more Inca ruins to be discovered near Choquequirau, and particularly on the North slopes of the glacier-clad peaks which separate Choquequirau from the Urubamba Valley. Dr. Faraboo, who led the Harvard expedition into Peru three years ago, went down this valley, and confirms my opinion that the region which we propose to enter is one of the most important unexplored archaeological fields in Peru. We shall probably spend about two months and a half in this region, doing everything we can to visit any ruins that are reported, particularly in the Vilcamba valley where the last Inca lived after he escaped from the Spaniards.

The second is a reconnaissance of the 73d meridian from the Amazon valley to the Ocean, a distance of perhaps three hundred miles. This reconnaissance, taking about a month, will include physiography,

geology, archaeology, etc. The region is an interesting one historically, and in it the great General Sucre campaigned in the weeks preceding the battle of Ayacucho, which has been called "The Yorktown of South America". In it also lies the rich sugar region of Abancay, and the celebrated ruins of Choquequirau, which I visited on my last journey to Peru.

Third: Mount Coropuna, a volcanic cone with a magnificent ice cap. Few people have ever heard of it, but some believe it to be the highest mountain in South America. Professor Bandalier is inclined to the belief that it is over 23,000 feet high. If possible, we shall climb the mountain. If not we shall content ourselves with determining its altitude instrumentally and making a good map of it. There are several villages near the mountain which offer an interesting field for the study of human geography.

Fourth: About forty miles Northwest of Mount Coropuna is Lake Parinacochas, which is practically unknown and unexplored. It is our plan to take along a folding canoe so as to be able to make a bathymetric survey of the lake and a rough survey of its shores. We expect also to determine the latitude and longitude of various points.

I have succeeded in raising nearly $6,000, or enough to pay for the expenses of three members of the party, and a little more.

It may interest you to know that a class mate of mine has given $1800, which will pay the entire expenses of one member of the expedition. Another man who was in College with me, in the class ahead of me, has given a similar amount. I have agreed to do the same.

Hoping that you will feel inclined to help make the expedition a success, I remain with affectionate regards,

Your loving nephew,

Miss Louise Tiffany,

Hotel Waldorf Astoria,
Fifth Avenue, New York.

H. E. SWEEZEY

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TELEPHONE 293-2

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New Haven, Conn.,

3rd/23rd/11

Prof. Hiram Bingham,
City.

Dear Sir:

Further to our conversation of yesterday, regarding the rates etc. to the West Coast, please find enclosed a letter from the Peruvian Line, which kindly return at your convenience.

In comparison with the rates of the allied Lines the rates are no less for they quote from Panama, and as you know the rate across the Isthmus is about $7.00 so it is an even thing.

From the description of the boats, given by the agents, it would seem as if they were fine although the tonnage is not stated.

As information comes in, it will be sent promptly to you and hoping to be of assistance to you we are,

H.E.S./J.

G. E. HODSON, PRESIDENT AND TREASURER.
WINCHESTER BENNETT, 1ST VICE-PRESIDENT.

T. G. BENNETT, CONSULTING DIRECTOR

H. S. LEONARD 2D VICE-PRESIDENT,
A. I. WARD, SECRETARY.

TRADE MARK
REG. IN U. S. PATENT OFFICE
AND THROUGHOUT THE WORLD

WINCHESTER REPEATING ARMS CO.
MANUFACTURERS OF

RIFLES, SHOTGUNS AND SMALL ARMS AMMUNITION.
ALL LETTERS SHOULD BE ADDRESSED TO THE COMPANY.

H. F. BEEBE, ASST. TO THE PRES'T,
D. H. VEADER, CASHIER.
F. G. DREW, SALES MANAGER.
W. R. CLARK, ADVERTISING MANAGER.
I. L. LIPPENCOTT, TRAFFIC MANAGER.
A. W. EARLE, AUDITOR.

NEW HAVEN, CONN., U. S. A.

March 23, 1911.

Professor Hiram Bingham,

Yale University, New Haven, Conn.

Dear Sir:--

Your favor of the 22nd instant comes duly to
hand after our conversation of this morning.

As I advised you, we will take up Bowman's
Model 1892 rifle and issue in the place of it a .30 Caliber
Model 1894 Take Down rifle, similar to that which you ordered
for yourself some time ago.

I got in touch with Foote, and as soon as he is at
all settled as to what he wants in the way of such equipment
I will take pains to see that he is supplied.

As to Mr. T. G. Bennett, I just had a chance to
start to talk this matter over with him when I was called to
the telephone booth on the long distance wire, and before I
had finished he had gone. I am inclined to believe that it
would be just as well for you to take this matter up with him
in person - and I believe you will find him not averse to
rendering some assistance.

The party at Colt's to whom we intended to refer
you was Mr. C. L. F. Robinson, '95 S. Mr. Robinson is at

Professor Hiram Bingham.

present with the Colt's Patent Fire Arms Mfg. Co., Hartford, Conn. It is possible that he still maintains a residence at Newport, but as regards his place of business and his place of actual residence - aside from purposes of taxation - I am quite sure that it is at Hartford; and it will be best to address him in care of the Colt's Patent Fire Arms Mfg. Co.

Yours very truly,

March 24, 1911.

Dear Sir:-

I am enclosing a clipping from the Yale Alumni
Weekly, which will tell you something of the plans
for a Yale Scientific Expedition to Peru. Although
I presume there is little chance of your being
sufficiently interested in this enterprise to desire
to contribute financially, I thought that possible
you might be willing to furnish us with part of our
equipment. On both of my former expeditions to
South America I carried two of your automatic revolvers,
and found them so satisfactory that I am desirous of
having the members of this expedition similarly armed.
It will of course, not be necessary for them to have
more than one revolver each. I do not need any myself
as, although mine are somewhat rusty and have been
through a good deal, they can be furnished up for the
purposes of this expedition.

C. L. F. Robinson, Esg.,
President, Colt's Patent Fire Arms Manufacturing Company,
Hartford, Conn.

Dr. H.B. -- "2"

of which work he has shown great aptitude for, as well as a high degree of judgment. I consider him thoroughly equipped and am confident that he would make a most desirable member of your expedition.

I have just spoken to him and he expresses himself as quite willing to extend the service from 6 to 8 months as suggested.

Whether the Coast and Geodetic Survey could properly loan the instruments, is doubtful, but if the request came through the President and the Secretary of Commerce and Labor, you can be assured that this Office would do everything possible.

I enclose a translation, made at the American Embassy, of a letter from the Danish Department of Agriculture, which Mr. Hendriksen presented as a letter of introduction.

Enclosure.

March 25, 1911.

Dear Harry:-

I am returning herewith, with many thanks, the Hudson
Bay lists which you were so kind to let me have, and which
I have had copied. They are very full indeed, and ought
to serve as excellent reminders. You know we couldn't
possibly take all the things which they suggest,

I am afraid, in my anxiety the other night to give you
a general idea of the geography of the country, I didn't
answer your specific questions about the vegetation.
Our northernmost point on the river Urubamba will probably
be in a region about 3,000 feet above sea level. This is a
truly tropical country which grows sugar cane, cacao, cocoa,
coffee, etc. It is as well wooded as steep valleys can be.
That means that frequent land slides prevent old forest growth
except in certain localities. The streams are rapid and the
valleys are from 6,000 to 12,000 feet deep, furnishing a
considerable variety of vegetation. I am slowly working out
the actual field plans, and it occurs to me that we will
not need so many saddle rules as I had at first supposed.
There will be a good deal to be done on foot. That is the
only way in which the topographer can do his detailed work, an
as you said the other night, you cannot make collections very
well on muleback. We shall, however, have mules enough for all
long marches. I think probably I will buy a few mules and use
them for relay service. This, however, does not interest you
greatly.

TRADE MARK
REG. U.S. PAT. OFF.

ESTABLISHED 1836

COLT'S PATENT FIRE ARMS MANUFACTURING CO.

CABLE ADDRESS "COLT, HARTFORD," WESTERN UNION, A.B.C. CODES.

HARTFORD, CONN., U.S.A. March 25, 1911.

Mr. Hiram Bingham,

Yale University,

New Haven, Conn.

Dear Sir:-

Am in receipt of your letter, also clipping, and regret that we have a definite rule against the free distribution of arms. You can readily understand that if we presented any one expedition with weapons we would be continually doing so.

We will be very glad, however, in your case to refinish your two arms without cost, and will also make a special price to any other members of your expedition.

Yours truly,

COLT'S PATENT FIRE ARMS MFG. CO.

President.

Sheffield Scientific School
of Yale University

OFFICE OF THE DIRECTOR
No.3, SHEFFIELD HALL

NEW HAVEN, CONNECTICUT

March 25, 1911.

Dear Dr. Bingham:-

I have your letter of March 23d, and we should of course
be very glad indeed to meet your desire in the matter of furnishing you
the equipment for the topographical work of the Peruvian exploration.

I have just talked with our Professor Tracy, who has charge of the Surveying,
and he informs me, first, that all of our instruments are of the heavy type,
probably not adapted for your needs, as the transits we have weigh probably
15 - 25 pounds. Secondly, all of our surveying work comes in June and in
September, when we have large classes, and our entire equipment is needed
during those two seasons. I am, therefore, forced to say that I see no
way of meeting your needs from our equipment. I am sorry that conditions
are such that I cannot help you in the matter.

Dictated.

March 25, 1911.

Dear Harry:-

I am afraid, in my anxiety the other night to give you
a general idea of the geography of the country, I didn't
answer your specific questions about the vegetation.
Our northernmost point on the river Urubamba will probably
be in a region about 3,000 feet above sea level. This is a
truly tropical country which grows sugar cane, cacao, cocoa,
coffee, etc. It is as well wooded as steep valleys can be.
That means that frequent land slides prevent old forest growth
except in certain localities. The streams are rapid and the
valleys are from 6,000 to 12,000 feet deep, furnishing a
considerable variety of vegetation. I am slowly working out
the actual field plans, and it occurs to me that we will
not need so many saddle rules as I had at first supposed.
There will be a good deal to be done on foot. That is the
only way in which the topographer can do his detailed work, and
as you said the other night, you cannot make collections very
well on muleback. We shall, however, have mules enough for all
long marches. I think probably I will buy a few mules and use
them for relay service. This, however, does not interest you
greatly.

TRADE MARK
REG.U.S.PAT.OFF.

ESTABLISHED 1836

Mr. Hiram Bingham,

Yale University,

New Haven, Conn.

Dear Sir:-

Yours truly,

OFFICE OF THE DIRECTOR
No. 3, SHEFFIELD HALL

NEW HAVEN, CONNECTICUT

March 25, 1911.

Dear Dr. Bingham:-

Dictated.

2029 Q STREET
WASHINGTON,D.C.

March 25, 1911.

Mr. Hiram Bingham,

Yale University,

New Haven, Conn.

Dear Sir:-

Your letter of March 21st, which was addressed to me at Ottawa, is just
received duly forwarded.

The subject of the Yale Expedition to Peru is one of great interest
to me, and I shall learn of its progress and results accomplished with a
great deal of anticipation and pleasure, but I do not at present think it
possible for me to join the expedition, fascinating as it would be to ac-
company you.

With best wishes,

V. F. MARSTERS, F. G. S.,
Consulting Geologist
Apartado - 856 Lima-Perú S. A.

Lima, Peru., S.A., March 27th., 1911

Dr. Hiram Bingham,

New Haven, Conn.,

I'll say dear Sir :-

I beg to acknowledge receipt of your letter
under date of December 6, 1911. In reply would say that I have
been in the region of CORRO PUNO, Department of Arequipa, Peru,
to make various investigations relative to mining affairs and
irrigation. Most of the writing I have therefore done, is of a
private nature; I have nevertheless published a little note with
photographs of the mountain "Corropuno", in one of the Lima illus-
trated papers, but as the editor, was considerate enough to re-
move my signature from the note and had stated that the accompany-
ing photographs had been received from a well known "European", I
obtained the original plates from him and republished at personal
expense over my signature. I will take pleasure in sending you copies
of the above, if such prove to be on hand.

I did not climb the mountain, but I passed far above the snow-line. At certain points, I consider ascent can be made very easily. The best time to ascend would be during the months of June, July & August. The rainy season in this section of country closes in April.

From Arequipa you can reach a town near the base of the moun-
tain, in five days hard riding, but over rather rough country. The
best way to reach Corropuno, is as as follows :- Fromollendo take
a small coasting steamer or better, tug, to Oconá. This boat makes
a trip about every 15 days, and has not

V. F. MARSTERS, F. G. S.,
Consulting Geologist
Apartado - 856 Lima-Perú S. A.,

but has no permanent running schedule. At Oconá you will be able to obtain all the animals necessary for your trip, and also a guide who will know the country well. I would recommend to you Juan Manuel Carnero an "arriero" who can provide you with good animals and give you good service. From Oconá you would have a distance of some 18 leagues to a Mining camp known as La Victoria where I am sure you would be well cared for when your mission is known. This distance you could cover in one day, but a long one, if you happen to be good riders. From La Victoria you would then pass up the valley of Chorunga to the cuesta of Andaray and thence over the highlands (to leagües more) to the town of Andaray. In this place the leading citizen is one Sr. Lazarte y Tejeda, who no doubt will give you all facilities. At this point you are at the base of the plateau on which stands the famous four-domed Corropuno. You should make Andaray your head quarters.

If I can be of service to you later on, please let me know,
and I will gladly do what I can to assist you.

55 WALL STREET
NEW YORK

March 27th, 1911.

My dear professor,

I have your letter of March 25th, and also the clipping,
which tells me that you expect to have a very interesting trip during the
Summer.

I have had a great many calls made on me from a number of
enterprises and I hardly feel like becoming a backer for this little
expedition. I sincerely, hope, however, that enough funds will be
raised and that you can carry out your wishes.

I am quite sure when this expedition is over that it will be
more than interesting to learn about it and if I can be given an opportunity
to attend a lecture and see pictures of this wonderful trip I shall be
very anxious to do so.

prof. Hiram Bingham,
Yale University,
New Haven, Conn.

March 27, 1911.

Dear Vic:-

Confirming our recent telephonic conversation
I understand that you will contribute $500 toward the
funds of the Yale Peruvian Expedition, the same to be
payable on the 15th of July, 1911.

I am sending a copy of this letter to George
Family Day, Treasurer of Yale University, to whom you
will kindly make your check payable when you are ready
to send it next July.

I am enclosing a copy of our plans, thinking that
you may be interested in having them for reference.

Assuring you of my sincere appreciation of your
kindness in being willing to help the expedition, and
your most generous offer of assistance, believe me to
remain, as ever,

Faithfully yours,

Victor Tyler, Esq.,

P. O. Box 13,

New Haven, Conn.

March 27, 1911.

Dear Billy:-

Ever since I came home from Washington I have been trying to raise money for the expedition to Peru. I enclose a clipping from the Alumni Weekly, in case you do not see that worthy periodical. I have just about got money enough to pay the expenses of my naturalist, not counting the physician. I am now trying to raise money for that definite object. Do you still feel inclined to go? With our plans as they are at present, there would be no great danger to our health or much need of a physician after the first of November, so that you might expect to get home on or about the 31st of November. Would you feel like making any monetary contribution to the expedition in addition to giving your services? On the condition of course that all your expenses were paid out of the expeditionary funds. If you could contribute $500, I think I should have no difficulty whatever in raising the other $1,000.

I still remember with gratitude your kindness to me in Washington, and your wife's courtesy in putting me in the hands of the best available medical men.

With kindest regards,

COPY.

WAR DEPARTMENT,
Washington.

March 28, 1911

My dear Mr. Norton:

I return herewith copies of correspondence from Dr. Hiram Bingham
of Yale University, relative to the assignment of a skilled topographer
of the Government to accompany the Yale scientific expedition to Peru,
and beg to invite attention to the accompanying report of the Chief of
Staff, dated March 21st instant, in explanation of the situation, so far
as persons in the military service are concerned.

The Chief of Engineers, U. S. Army, to whom the matter was also
referred, reports as follows:

"The force of civilian employees in the Engineer Department at Large includes skilled topographers, among whom there could no doubt be found a man competent to undertake the work proposed. But such men are all employed upon the regular work of the Engineer Department, and paid from the appropriations made by Congress for the specific works on which they are engaged. These appropriations would not be applicable to the payment of the salary of any such employee during a prolonged absence on such an expedition as this; nor is there any general appropriation under the control of the Chief of Engineers that could be used to pay the salary of the men so absent. It therefore seems that the Chief of Engineers is unable to detail a man for the service desired, unless the expedition can arrange to pay his salary while engaged in the work."

The Secretary to the President,
The White House.

expedition, so that he will have no difficulty in identifying
them.

The second request which I have to make of your Excellency
is that you will assign to the party as military aid a bright
and intelligent officer who assisted me in my former work at
Chocquequirau. His name I believe, is J. Caceres. He was
so efficient, cheerful, and capable that I am sure his
presence with us would be of very great assistance to the
cause of science.

The topographers will need a couple of intelligent young
fellows to aid them in the survey. But I do not need to ask
you about these things, for I know you will help us in every
way you can.

You will be interested to know that the naturalist who
has been selected for the expedition is a professor in the
Sheffield Scientific School of Yale University; the geologist
is a professor in the geological and geographical department
of Yale University, and the chief topographer is at present
a distinguished member of the United States Coast and Geodetic
Survey. He had been assigned to lead an expedition that
is engaged in surveying the boundary between United States
and Canada, but owing to the kindness of President Taft,
who like yourself has taken a personal interest in the Yale
Expedition to Peru, he has been released to enable him to
accept the appointment on my staff.

Again assuring you of my appreciation of the interest
which you have continually shown in my work, not only at the

March 28, 1911.

Dear Mr. Bennett:-

Mr. Day has just written me that he has already
received your contribution toward the Peruvian Expedition.
I had no idea that you would find it convenient to send
this contribution so soon after my conversation with you
or I should not have written as I did yesterday.

Several of the contributors have expressed the desire
to postpone the payment of their subscriptions for a month
or so, and I thought possibly you might like to do the
same.

Again assuring you of my appreciation of your generous
assistance to the expedition, I remain,

Faithfully yours,

Thomas G. Bennett, Esq.,
423 respect Street,
New Haven, Conn.

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New York

IMPORTERS OF EVERYTHING FOR A SADDLE HORSE
From "SADDLE to SPUR."

March 30, 1911.

Prof. Hiram Bingham,

737 Prospect St.,

New Haven, Conn.

Dear Sir:-

Acting upon the request of Mr. I. Ellsworth, who called on us
today, we take pleasure in forwarding you our catalog by today's mail. We
understand you are in the market for half dozen or more saddles for Peru-
vian expedition purposes, and as explained to Mr. Ellsworth, we have been
doing this business for upwards of thirty years and are thoroughly equipped
to give you just what you want.

As to the question of price, this was talked over between us and
as explained to Mr. Ellsworth, we are bound to extend discount only to
people in the trade, but we sometimes make exceptions where we feel justi-
fied in doing so and your expedition, we think, is one of them. The trades
people in New Haven could not give you the outfits, even if they wanted to,
and while we would ask you to treat the matter as confidential, we wish to
extend to you our regular export discount of 15%, from our catalog prices.
This discount applies on orders for six or more saddles.

If there is any information we can furnish in regard to the saddle
equipments, we shall be pleased to do so and if you favor us, we assure you
our best attention.

March 31, 1911.

Dear Mr. Huntington:-

I thank you for your kind letter of March 28th, and for
the interest which you have expressed in the work of the Yale
Peruvian Expedition.

I am very sorry that you feel that this work lies outside
of your particular field.

We have completed the subscriptions for the traveling expenses
and maintenance of all the members of the expedition, and have
secured an excellent group of men. We have, however, very little
money which can be devoted to the work of exhumating ruins or
cutting down the jungle which has overgrown the Inca cities in
the Amazon valleys. As you say, this work is of the greatest
importance, and I hoped very much that you might feel like making
a special donation for this particular object. I know that the
calls upon you must be very great, and I appreciate what an
enormous amount you are doing to put on a firm basis the work of
research in Hispanic matters.

If you should at any time decide to alter your decision or to
make an appropriation for the definite object of enabling more work
to be done in and about the Inca ruins, I shall be delighted.

Faithfully yours,

Avochor M. Huntington, Esq.,

200 West 72d Street,

New York,

March 31, 1911.

Dear Bowman:-

Mr. Hendriksen asked me to let him know as soon as
possible whether you had definitely decided to take him
with you on the Bolivian trip. I do not know how soon
you will care to make up your mind to this matter, but when
you do, will you kindly let me know?

I have not yet succeeded in securing any money for a
doctor, but I have in hand sufficient money to meet the
expenses of the five who met Wednesday. That is to say, a
geologist and geographer, a naturalist, a chief topographer
and an assistant topographer. It begins to look somewhat
doubtful whether we could raise much more money at the
present time. Three men on whom I counted for considerable
gifts, feeling I suppose the depression in the railroad
market, have asked to be excused from contributing. Much
to my surprise this includes Mr. Huntington.

Faithfully yours,

Professor Isaiah Bowman,
Peabody Museum,
Yale University.

March 31, 1911.

Dear Mr. Hendriksen:-

I trust that you have returned safely from your
visit to New Haven. Please allow me to tell you that
you left an extremely pleasant impression on all who
met you, and I have been congratulated by a number of
my friends on securing your services for the Yale
Expedition to Peru.

I have written President Taft, asking him
whether it would be possible for the Survey to loan us
the instruments which you desire to use. When I receive
his reply I will communicate with you further regarding
the matter of instruments.

I beg to enclose two copies of the agreement of which
I spoke to you yesterday. Will you kindly sign them and
return one to me.

March 31, 1911.

Dear Dr. Kuntz:-

I presume you have seen Lincoln Ellsworth since
his visit to New Haven and have heard that he has accepted
my invitation and will join the Yale Peruvian Expedition.
He made a most favorable impression on all of us, and we
consider ourselves most fortunate that he wants to join
the expedition.

Will you kindly tell me whether he knows that his
father is going to contribute toward the expedition or not.
Neither of us mentioned it the other day. I remember you
said something about his father not wanting him to know
about it.

With kindest regards, believe me to remain,

Faithfully yours,

Dr. Geo. F. Kuntz,

401 Fifth Avenue, New York.

March 31, 1911.

Dear Sirs:-

I am anxious to secure an estimate from you on the
following proposition:

For the food supplies of the Yale Scientific Expedition to Peru it is my plan to make up a number of boxes, each to contain the appended list of supplies. It is intended that these boxes shall be well made, of good material, lined with waterproof cloth, and enclosed in rough burlap covering.

They are to be of uniform size, material and weight, and each will contain exactly the same amount and kind of supplies.

The whole consignment to be ready for delivery on or before June 6, 1911, marked "No.---, Yale Peruvian Expedition, Molleño, Peru". Please quote your lowest price f.o.b. steamship from New York. All articles must be of the very best quality obtainable. In the estimate kindly specify names and brands offered.

Each box to contain the following:

1 ham, weight about 6 lbs.

Bacon, about ten lbs. in 2 strips.

Army biscuit, 1 ten lb. tin. (the kind supplied and advertised by Abercrombie & Fitch).

Sugars, 10 lbs.

Ceylon English Breakfast tea, 2 lbs.

Salt, 1 lb.

Tinned chicken, 2 lbs. in half lb cans. Preferred brand Rich and Robbins.

Rice, 5 lbs.

Macaroni, 1 lb.

Dried apricots, 1 lb.

" apples, 1 lb.

" peaches, 1 lb.

" prunes, 1 lb.

" figs, 1 lb.

Cereas eating chocolate, 8 lbs in quarter-pound bars.

March 31, 1911.

Dear Mr. President:-

Through your courtesy and the kindness of the Coast and Geodetic Survey in the department of Commerce and Labor, we have succeeded in securing the services of an excellent skilled topographer. Mr. Kai Hendrikson, formerly of the Danish Geodetic Survey, and recently appointed to lead a surveying expedition on the Canadian boundary, will be released without salary, and is willing to serve as chief topographer of the Yale Expedition in consideration of receiving his expenses and a small honorarium. Yesterday he came to New Haven and a mutually satisfactory agreement was reached. I know that we shall be able to make a far better series of maps than would have been possible except for your kindness.

May I now be so bold as to ask whether it would be possible for the Coast and Geodetic Survey to loan us the instruments which Mr. Hendriksen will need to use? Unfortunately the University does not possess the requisite equipment for the work of a topographer on a geographical expedition. In England the Royal Geographical Society loans the expensive instruments which are necessary. In this country the American Geographical Society has no instruments to loan. There seem to be but two alternatives, either to spend a considerable part of the money which has been raised to meet the necessary expenses for instruments, or else to secure the loan of them from the Government. I trust that

YALE UNIVERSITY

GEOLOGICAL DEPARTMENT

NEW HAVEN, CONNECTICUT

April 1st, 1911.

Dear Bigham :

I am afraid that no conclusion can be reached concerning
the Bolivian work and Mr Hendrickson's relation to it at this time.
No funds are available for the work and it looks now as if none could
be secured. There is this to be said about it however. If the inter-
pretations in Peru in the way of structural geology and physiography
depend to an important degree upon additional work farther south it might
be considered wise to extend the work in that direction at the present
Expedition's expense. I am quite willing however to leave the matter
in your hands. It may well be that such an extension will not prove
to be necessary; if it seems necessary later on I shall be glad to present
the arguments down there and reach a decision on the ground. Of course
the chance to get down there again in two or three years would lessen
though it might not altogether reduce the necessity for such extension.
What to you say to leaving it as one of the open points about which we

ADDRESS ALL COMMUNICATIONS TO
"SUPERINTENDENT, COAST AND GEODETIC SURVEY,
WASHINGTON, D. C."

COAST AND GEODETIC SURVEY

Washington

April 2nd, 1911.

Dr. Hiram Bingham,

Dear Dr. Bingham:—

Your very kind letter, accompanied by agreement, came duly
to hand. I am highly gratified to find that you have such a good
opinion of me and I shall do all possible to justify your confi-
dence.

I beg to enclose one copy of the signed agreement and also
a record of my expenditures on my trip to New Haven.

Immediately after my arrival in Washington I had, at Prof.
Bowmans suggestion, an interview with Mr. Sargent, who has done
similar work in China, and also with Mr. Matthes, both of the
Geological Survey, and they have promised to give me the benefit
of their experience. I am also consulting certain works in the
Library of Congress.

I expect in a short time to submit to you a preliminary out-
line of the work I consider possible to carry out.

Enclosures.

THE WHITE HOUSE
WASHINGTON

April 3, 1911.

My dear Doctor Bingham:

Your letter of March 31st concerning your
desire to have the use of certain Government
instruments in connection with the Yale Expe-
dition has been received and by direction of the
President your request has been referred to the
Coast and Geodetic Survey.

Doctor Hiram Bingham,
Yale University,
New Haven, Connecticut.

April 3rd 1911.

Dr. Hiram Bingham,

Yale University,

New Haven, Conn.

Dear Dr. Bingham:-

I beg to return the equipment-list with the notes, you wanted.

Will you show me the favour to send me a few lines, regarding
what kind of the following articles is the most desirable and where
to buy them: Moccasins, rubber puncho, felt hat, spurs and gauntlets.

I will also thank you very much to get advice about the most
convenient way of taking money to Peru.

THE MEHLBACH SADDLE CO.
SUCCESSORS TO
WHITMAN SADDLE CO.

FACTORY NEWARK N.J.

T TRADE MARK
"WHITMAN"

Office
AND
Salesroom
106 Chambers
Street.

New York

April 3, 1911.

Hiram Bingham,

New Haven, Conn.

Dear Sir:-

Answering your esteemed favor of the 1st inst. after considering
the matter, we shall be pleased to extend to you on the order of three
saddles, the same discount as offered on six or more, for we are satisfied
that if we furnish you with such goods as you may require in our line, it
cannot help to bring us other orders.

We have sold a number of different styles of saddles for mountain
work in the tropics, and we think our Deep Seat Frontier saddle, as shown
on page 21, gives the best satisfaction for all round work, under conditions
such as your expedition will meet with. This saddle, gotten up for South
American work, is light and strong, the deep seat gives support for the
back in ascending and the horn is much liked to lean upon in descending,
mountains. We think that this saddle, especially if equipped with saddle
bags as shown on page 21, will be just the thing for your expedition. In-
cluded with it, are leg guards and hooded stirrups, also as shown on page
21, but of plain leather to match the saddle, and take it all in all, it
is an ideal saddle for your purpose.

As to the quality, the best is none too good for your work and
we have many patrons who use the saddle for a year or more and then sell
them in South America for fully as much as they paid us for them.

We hope to receive your order and in meantime, if there is any
further information we can furnish, we shall be pleased to do so.

per

401 Fifth Avenue, New York.

April 4, 1911.

Prof. Hiram Bingham,
Yale University,
New Haven, Conn.

Dear Prof. Bingham:

Your courteous favor of the 31st instant is at hand.
Ellsworth had three trips in mind and I know he must have been
much impressed to decide on yours.

Believe me,

April 4, 1911.

My dear Mr. Schaefer:-

I thank you for your kindness in attending to the estimate on the
food supplies so promptly. The price seems to me quite reasonable,
but I am not able to understand why the gross weight should be so large.
There were only seventy two pounds of provisions included in the list,
and I do not see why that should require forty eight pounds of packing
material. It seems to me that a wooden case, weighing not more
than fifteen pounds ought to be amply sufficient for the tins, burlap,
lining, etc. It ought not to weigh more than eight or ten pounds
more. To tell the truth, I did not expect to have the total load
weigh more than ninety pounds which seems to me a fair one half load
for a mule. Do not you agree with me? I notice, also, one or two
things regarding this estimate:

First; the brand of goods is not specified, as was requested.

Second: Where I specified army biscuit, as supplied by
Abercrombie and Fitch, for 60 cents, a ten pound tin, there is
here specified 'Pilot Biscuit' which is not the same thing, and is not
better, even though the price, $1.05, is higher.

In the third place, I do not believe Baker's Caracas Chocolate
will answer our requirements. I should be glad to see a sample of
this before deciding, however. I do not believe we should be able
to send these things by freight, as I fear it would take too long,
and there would be danger of their not reaching Hollendo before the
first of July. I think it would be simpler to get them through the
custom house if we took them with us. I should be glad also to have

IN REPLYING QUOTE INITIALS

TREASURY DEPARTMENT

WASHINGTON

April 5, 1911

My dear Bingham:-

I was pleased to learn from your favor of
March 31st that you had secured the services of a
topographer to accompany your expedition to South
America and that you are pleased with the man whom the
Government is to let you have. I am sorry that it
was not found possible for the Government to actually
donate the services of this man, but as you have
sufficient funds to permit you to give him a small
honorarium the money feature is a comparatively small
one and the main point is that you are able to secure
his valuable services.

I am also glad to know that in addition
to taking along with you a geographer and a geologist
you will have in your party a naturalist and an assist-
ant topographer.

When I went to the White House they told

ALL COMMUNICATIONS &c SHOULD BE SENT TO THE ADDRESS BELOW, NOT TO COCKSPUR ST OR CHARING CROSS.

TELEGRAPHIC ADDRESS: ZEITGEIST, LONDON. TELEPHONE: 4284 GERRARD.

LONDON AGENCY FOR ORDNANCE MAPS,
12, 13, AND 14, LONG ACRE,
LONDON.W.C.

April 5th 1911.

SUBJECT: Yale Expedition to Peru.

Professor Hiram Bingham,
Yale University,
New Haven,
Conn., U.S.A.

Dear Sir,

In reply to your letter of the 24th ult., I shall be happy
to do what I can to help you by presenting you with one copy each
of sheets 25, 29, & 28 of Raimondi's map - all I have. Sheet 26
is out of print, and cannot be obtained. I am having the sheets
mounted for use in the field, and I hope they will arrive safely.
I wish the expedition every success, and I shall be pleased to see
the results in due course as you kindly suggest.

ERNEST HOWE
77 RHODE ISLAND AVENUE
NEWPORT, R.I.

April 5, 1911.

Dear Hi:

I have just returned from the West and find yours of
the 16th March in regard to photographic outfits waiting for
me. The prospectus was forwarded, not the letter, hence the
delay.

I may say right here that I am more than ever sorry
that I am not to be with you, but, as events have turned out,
equally glad that I handed in my resignation as a member of
the party when I did. Until the middle of July anyway I shall
not be my own master, and it is possible that I may have my
hands full for another 12 or 18 months.

Now as to things photographic. Come on here and talk
it over! Such matters are hard to discuss at long range.

I strongly advise two outfits. One, a 3¼x4¼ film camera,
you have already, I believe. Take plenty of film packed in
air-tight tin tubes. The second outfit should consist of a
3¼x4¼ plate camera with long bellows, a first class convertible
anastigmat lens, six double holders, a light tripod and a
reliable exposure meter.

The advantages of this size are many. It is the size of
lantern slides, which can be made direct from the negatives;
with a good lens, negatives can be enlarged to any desired size;
and the outfit is light and compact, the plates are neither
bulky nor heavy, they are of a standard size and should be
obtainable anywhere. It is the commonest small camera size
in England and has been very largely used by British expeditions.

I don't care what anybody says — plates are better than
films, especially in the tropics, and for the work that you
mean to do you must have a camera or cameras that have a ground
glass for focusing and not a scale only.

For the present I cant get to New Haven so you must come
here for details. Wire or write a few days ahead as I expect
to be called to New York off and on for the next few weeks.

W. R. GRACE & Co.

NEW YORK

SAN FRANCISCO
LIMA
CALLAO
AREQUIPA

VALPARAISO
SANTIAGO
CONCEPCION
VALDIVIA

LA PAZ

GRACE BROTHERS & CO., LTD.
LONDON.

CABLE ADDRESS "GRACE"
HANOVER SQUARE.
P.O.BOX 286

NEW YORK

April 5th, 1911.

Prof. Hiram Bingham,

Yale University, New Haven, Ct.

My dear Prof. Bingham:--

I have your letter of April 4th. Our
Buying Department took this matter up with Austin Nichols &Co.,
who advise that it is impossible to properly pack 72 lbs of
goods in a case weighing 10 lbs. or thereabouts, for you must
femember that these goods will be subject to many rehandlings,
not only in Panama, but en route to the Interior, and conse-
quently it requires a pretty heavy case, - from 35 to 50 lbs.
Should you decide to order, we will see that they do not
use too heavy a case, but one that is strong enough to hold
the goods.

We find that after all, 120 lbs. is
not too heavy for carrying on a mule.

With reference to the brand of the
goods, these were specified wherever possible. Army biscuit
cannot be bought from the jobbers here, as they are con-
trolled by the United States Government, but should you re-
quire the army biscuit, we can get them from Abrombie & Fitch
direct, but Austin Nichols say that they know what they are
talking about and that the pilot biscuit which they sub-

W.R. GRACE & CO.
NEW YORK.

stituted is a much better biscuit than the army biscuit.
Chadbury's chocolate is not obtainable in the United States.

With reference to sending the goods by freight,
I take it that you are going to land everything at Mollendo,
and then take it into the Interior. In that case, I would
suggest sending the goods a week or ten days before you sail,
and they will probably be in Mollendo when you get there. I
am afraid if you take them with you as baggage, you will incur
considerable extra expense, which can be avoided if you send
them, say, two weeks in advance, and our office in Mollendo
will look after getting them ashore and holding them until your
arrival. Do as you think best about it. I only offer this
suggestion so as to save you some expense.

With reference to getting them in free into Peru,
I think if you stop off in Lima and receive a formal order
from the President, you will have no trouble. A Consular
invoice would have to be taken out here, if you ship them.

April 5, 1911.

Gentlemen:-

Acknowledging your kind favors of April 4th and 3d, I am
very much pleased that you are willing to extend to us on an
order of three saddles or more the same discount as you offered
on six or more.

May I trouble you to tell me whether the Engineer's saddle,
first quality, on tree No. 4 would not be as good for our purposes
as the deep seat Frontier saddles? The only difference I can see
from the cut is that the latter has a leather protection, which
does not seem to be necessary, and must add to its weight.

Will you kindly give me the weight of each saddle, not
including saddle bags, and also the weight of the saddle bags.

As regards the bits, it seemed to me that bit No. 63 gave
an idea of the style of curb which I approve for Peruvian mules.
If you think No. 1 on page 39 is better, I should be inclined to
leave that entirely to your judgment. Of course I was anxious
to have the snap hooks. Would not bit No. 6 answer our purposes
equally well? Is it of equally good quality.

Will the mountain broaching fit the engineer's saddle and
the deep seat Frontier saddle equally well?

Sincerely yours,

The Mehlbach Saddle Company,

106 Chambers Street, New York.

April 5, 1911.

Dear Ed:-

Noting on your suggestion, I wrote to Payne Whitney about
contributing to the Peruvian Expedition. His secretary replied
that he was in the South but would take the matter up on his
return in about three weeks. That was more than a month ago.
Do you still think there is any chance of his being likely
to be interested? I don't want to bother him with another
letter, particularly as I did send him a letter more fully
explaining our plans after they had been worked out in greater
detail than at the time I wrote my first letter.

I am very anxious indeed to raise at least $1,000 more
for the expedition, so that we shall not need to be hampored
by scarcity of labor, etc. By going without a doctor I can
take this money out of the funds already raised, but it does
not seem to me to be quite safe to take half a dozen valuable
men to Peru without furnishing them with the services of a good
doctor in case of accident or necessity.

If you can find out whether Payne is interested at all, or
how he feels about this matter, you will confer a great favor
on,

Yours faithfully,

Edward Sawyer, Esq.,
Rock Spring Road,
Stamford, Conn.

April 5, 1911.

Gentlemen:-

Hey I trouble you to tell me whether the Engineer's saddle,
first quality, on tree No.4 would not be as good for our purposes
as the deep seat Frontier saddles? The only difference I can see
from the cut is that the latter has a leather protection, which
does not seem to be necessary, and must add to its weight.

As regards the bits, it seemed to me that bit No. 63 gave
an idea of the style of our which I approve for Peruvian mules.
If you think No. 1 on page 39 is better, I should be inclined to
leave that entirely to your judgment. Of course I was anxious
to have the snap hooks. Would not bit No. 6 answer our purposes
equally well? Is it of equally good quality.

April 5, 1911.

Dear Mr. Schaefer:-

It is surely very kind of you to take so much time over the question of my supplies. I am rather surprised to see that you have come to the conclusion that 240 lbs. is not too heavy a load for a rule. It is true that I have seen rules loaded even more than this in the big pack trains that come into the interior, but these trains move very slowly indeed. I wonder if it would not be possible for these goods to be packed in heavy duffle bags, so as to avoid carrying the weight of the wood. The duffle bag made by Abercrombie and Fitch, 15 inches in diameter by 36 inches long, weighs only 3-1/2 lbs. and when made of the best material is lifted at only $3.75. Undoubtedly, a discount could be secured on this price. I have tried these "porto" duffle bags and they wear splendidly. They are absolutely water-proof and will stand an unusually large amount of strain and wear. I think they might be enclosed for the journey to Peru in very light but securely bound boxes; even if these were broken there would be no loss, as the bags could be firmly locked. I should be glad to know whether any of your people have tried this method of carrying supplies.

Could you tell me at what Austin Nichols estimate the cubic contents of the boxes they propose to furnish? And would you ask them to send me a sample of their pilot biscuit? With regard to the chocolate, I think, it would probably be better to buy that in Arequipa as I did before.

work than anyone else. You might find the work there so interesting, that you would want to spend more than two weeks.

So far as I am concerned, I think you could put in your time to the better advantage there than in New York Museum. They don't really know much about South America in the American Museum, as they have nobody there who has done the kind of work so nearly related to ours as Dr. Farabee has.

I expected to go to New York on April 11th with Mrs. Bingham, but she has changed her plans during the last twenty-four hours, and I don't know just when I shall go, so don't bother about me. If you are in New York when I come I will telegraph you a day ahead.

What would be your views with regard to the saddles? Do you think it better to get first-class new saddles, provided we can get the money for them, or would we really do just as well to take the slightly used saddles? Which do you consider the best value? My own inclination is to buy the engineer's saddle made by the Whitman people, or else the deep seat frontier saddle which they recommend. I don't care, however, about getting a saddle that has never been used at all, provided the workmanship and material are first class and there is good value in the saddle. There is this to be considered, however, we must fit mountain breeching to all the saddles. It makes a great difference in one's comfort in traveling up and down those terribly steep mountain trails in the Eastern Andes.

Our Easter Vacation begins on the 12th of April, and I am
going down to the country then for a few days. How would it do
for you to plan to come to New Haven on April 17th, spend a few
days here, and then go on to Cambridge and see Dr. Farabee,
stay there as long as you feel you are getting good value for
your trouble, then come back here and make the final plans for
starting for Peru? As for the date of your sailing, we can
decide that then.

Have you thought anything more regarding your theodolite?

I have changed the wording in the agreement and return
one copy herewith.

I wish you would look up in the Lenox Library the works
of Alfred P. Maudsley, particularly his book on Guatemala and
his contributions to the great Biologia Centrale Americana.
I consider him the best archaeological engineer of the English
speaking world. He made seven trips to Central America and
Southern Mexico. E. G. Squire's "Peru", and Professor A. F.
Bendelier's "Islands of Titicaca and Koati" are both very valuable
for our purposes. So is Wiener's "Perou et Polivie", although
it is very untrustworthy.

Sincerely yours,

April 5, 1911.

Dear Mr. Hendriksen:-

As regards the articles about which you ask, I think
you will find them to the best advantage and in the greatest
variety at Messrs. Abercrombie & Fitch, 57 Reade Street,
New York. They will be glad to send you their catalogue
at your request. They will allow a discount to the Yale
Peruvian Expedition. If you do not succeed in getting this
discount from them as a member of the expedition, I shall
be glad to take the matter up for you and by purchasing
the goods desired to secure them at less than the regular
list prices.

The most convenient way of taking money to Peru is to
secure a letter of credit from Messrs. W. R. Grace and
Company, Hanover Square, New York. If you tell them that you have
been appointed topographer of the Yale Expedition they will be
glad to accommodate you. It would also be well to have a few
American express checks of small denominations, 10's and 20's
preferred. These will come in handy on the steamer and can
readily be cashed in the largest cities of South America.

I am enclosing a statement of the equipment and itinerary.

Sincerely yours,

Kai Hendrikson, Esq.,
United States Coast and Geodetic Survey,
Washington, D. C.

( copy )

DEPARTMENT OF AGRICULTURE,
Office of the Secretary,

Washington, April 7, 1911.

Hon. Charles D. Hilles,
Secretary to the President.

My dear Mr. Hilles:

I have your note of the 6th, with enclosures from Doctor Hiram Bingham, of Yale University, in which he speaks of certain instruments which he desires to obtain on loan from Government bureaus for use on an exploring expedition under the auspices of the University. I infer from the correspondence that the instruments desired are for use in a topographic survey. Some of them, it appears, may be supplied by the Weather Bureau and some by the Coast and Geodetic Survey.

May I trouble you to ascertain from Dr. Bingham just what he wants in the way of instruments that cannot be supplied by the Coast and Geodetic Survey? I will then take pleasure in inquiring of the Chief of the Weather Bureau what he can do towards supplying the desired things, if he has them.

SHEET NO...

Hiram Bingham

4-7-11

~~6 No.2 Aluminol cooking outfits~~ each $9.85 less 20%
6 Porto duffle bags No.D each 4.25
3 Pork bags each .50
12 No.2 food bags " .15
6 No. 2 pack cloths " 2.50
1 Woolen Gabardine hunting coat to measure and knickerbockers (No discount on custom made clothing) ~~2 heavy black rubber patches, catalogue price~~ less 20% ~~6.40~~
2 Army flannel shifts to measure (No discount)
1 Belt Select $5.50 less 15%
2 pr Ristfit gloves No.2, per pair 3.50 less 20%
4 " Scotch wool gloves " 1.00
Head net each .75
1 pr. Knee boots to order ($2.00 above catalogue price for made to order boots) ~~2.40~~
2 pr Waterproof Moccasins #510 per pr. $4.50
1 1/2 pts Visabl .50
1 tin box of 100 matches .35
We should be very glad to receive your order
for the above goods which will have our prompt and careful attention.

The goods are first class in every respect, and

the prices quoted above are the lowest that we can make

considering the high quality of materials and workmanship.

JPS

April 8, 1911.

Dear Mr. Ellsworth:-

Yesterday my wife received word from Jamaica that her
mother was seriously ill. This necessitates her going to
Jamaica today. She has asked me to escort her down there, so
that I shall have to be away for slightly over two weeks.
I expect to take the return steamer which arrives in New York
on Tuesday, April 25th.

While I am away, I hope you will go up to Cambridge and
see Dr. Faraboe. I have written him about you and he is
expecting your visit.

Find out everything you can about conditions in Southern
Peru, the cost of rules, whether you can get them in Cuzco or
not, how long it takes to get to Santa Ana, the various routes,
what ruins he knows of in that vicinity, how to deal with the
Indians, how to get any of their language before going down
there, how to get hold of a few words of Quichua, the possibility
of obtaining supplies, his views regarding archaeological
engineering, the kind of work done by the Harvard Expedition
in Central America, cost of labor, and a thousand and one things
which I am sure you will think of on the spot.

Of course if you have read some of the things suggested in
my last letter before seeing Dr. Faraboe, you will be able to
get much more out of your visit.

Regretting the necessity that calls me away, but appreciating
the fact that I am leaving behind me an engineer who will be keen

The John E. Bassett & Co.
Wholesale and Retail

Hardware and Cutlery
Kitchen Ware and Builders' Supplies
754-758 Chapel St. 314 State St.

George J. Bassett
Pres't and Treas.
Halsey W. Kelley
Sec'y and Asst. Treas.

New Haven, Conn. April 8, 1911

Prof. Hiram Bingham

Yale University, City

My dear Mr. Bingham:-

I find in answer to my letters that we can get the Gold Medal Camp Beds No. 1 made three feet long when closed at the price of the No. 1 regular. I also find that the aluminum camp outfit can be furnished with the large size frying pan at a slight additional cost.

We are therefore pleased to quote you on the different items as
follows:-

6 No. 1 Gold Medal Folding Camp Beds $2.20 each
2 No. 3 " " " Chairs 1.10"
3 No. 1002 Camp Outfits with large fry pans and canvas cases at $7.60 per set
6 Stonebridge Brass Folding lanterns @ 1.75 each
1 Collins handled axe and extra handle 1.25
1 Axe sheath with shoulder strap 1.00

We should be pleased, if you will allow us to do so, to furnish the Marble Axes and hunting knives without charge as we should like to feel that we had a little interest in the expedition.

If any of the above prices are favorable, we shall be glad to
order the goods. It may require two or three weeks to get them as
the aluminum goods come from Pittsburg and the camp beds and chairs
from Racine, Wisconsin.

THE WHITE HOUSE
WASHINGTON

April 8, 1911.

My dear Doctor Bingham:

With reference to your letter of March
31st concerning your desire for the loan of
certain Government instruments in connection
with the Yale Expedition, I inclose you copy
of a letter from the Secretary of Agriculture,
with whom the matter was taken up at the Pres-
ident's direction. Will you not communicate
directly with Secretary Wilson, advising him
just what instruments you desire from the
Weather Bureau for use on the expedition?

Inclosure.

W.R.GRACE & Co.

CABLE ADDRESS "GRACE"
HANOVER SQUARE
P.O.BOX 286

NEW YORK

SAN FRANCISCO VALPARAISO
LIMA SANTIAGO
CALLAO CONCEPCION
AREQUIPA VALDIVIA

LA PAZ

NEW YORK April 10th, 1911.

Prof. Hiram Bingham,

Dear Prof. Bingham:--

I have your letter of April 5th and submitted
it to Austin Nochols & Co. They do not recommend taking your
supplies in a duffle bag alone or in a duffle bag covered with
a light case. You must remember that a number of the items
are packed in paper cartoons, others in a glass jar and the balance
in tins and they, therefore, think that the leakage and breakage
would be very considerable. They will, however, pack the goods
any way you specify, but it will be at your own risk.

If you are going to take the goods with
you, the duffle bag might do, otherwise, I would suggest packing
in a heavier case. The transhipment at Panama is very rough,
and particularly so at Mollendo. The cost of the duffle bag is
$2.50 each, net, and $1.05 extra for lock and handle. The cost
of the light case to cover would be about $2.00 - cubic contents
of the box estimated at about 4½ cubic feet.

I have asked Austin Nichols & Co. to send
you a sample of the pilot biscuit, which they will do.

I am glad to learn that you have been
so fortunate in getting a first class man to make your maps.

BERTRON, GRISCOM & JENKS

40 WALL STREET
NEW YORK

LAND TITLE BUILDING
PHILADELPHIA

New York, April 10, 1911.

My dear Hi:--

I have yours of April 5th in reference
to the Yale Peruvian Expedition which I have read
with considerable interest in the Alumni Weekly. I
have a considerable call for my funds at this time,
supporting a large and growing family, and meeting
the charitable demands which we all have to care for
regularly. I have not as yet reached the class of
capitalists where I can feel I can afford to help an
expedition such as yours is. I wish you every suc-
cess in the undertaking which must be exceedingly
interesting.

With kindest regards,

H.

( copy )

DEPARTMENT OF THE INTERIOR
UNITED STATES GEOLOGICAL SURVEY

Washington, D.C.,

April 10, 1911.

Hon. Charles D. Hilles,
Secretary to the President,
White House.

My dear Mr. Secretary:

In reply to your letter of April 6 addressed to Secretary Fisher
regarding the request of Doctor Bingham for the loan of instruments for
the use of the Yale Exploring Expedition, it will be possible for the
Geological Survey to furnish the expedition with surveying instruments
which will probably meet its needs. There is, however, no information
in the correspondence attached to your letter specifying the number and
types of instruments that will be needed. Until this information is
received I can not state definitely whether the instruments can be
supplied. If the desired instruments are in the possession of the
Geological Survey they can be reserved here in stock, if not furnished
immediately to the Yale Expedition; but the number and description should
be known at as early a date as practical since shipments will very soon
be made to equip the numerous Survey field parties to be organized
in various portions of the United States.

TELEPHONE
No. 57 MAYFAIR.

1, Savile Row,
Burlington Gardens,
London, W.

April 11th, 1911.

Prof. Hiram Bingham,
Yale University, New Haven,
Connecticut, U.S.

Dear Prof. Bingham,

Your letter of the 23rd. was before the Council yesterday and they asked me to express their regret that they are unable to change their decision with regard to your request for the loan of instruments. The demand for instruments has recently been so great that it is impossible to meet it without straining the resources of the Society. It does seem surprising that in a wealthy country like America with two Geographical Societies that seem to have abundant funds at their command, no provision is made for the encouragement of exploration in this way.

We shall be very pleased indeed if Prof. Bowman saw his way to join the Society and I enclose a form

HARVARD COLLEGE OBSERVATORY,
CAMBRIDGE, MASS.

April II, 1911.

Professor Hiram Bingham,

Yale University,

New Haven.

Dear Mr. Bingham:-

Coropuna was not visible from the Observatory in Arequipa, and hence I am not so familiar with its appearance as the mountains near the city. However, I see no reason to suppose that the conditions at Coropuna would be much different from those on the other mountains. On the mountains visible from the Observatory clouds were rarely seen from April or May to October or November. The clearest months are May to August, that is, the winter months. One might say that the mountain wouls almost surely be free from caps during those months, and that they would almost surely be present during December to March. In the worst weather the cloud cap may be continuous for several days, but in general the morning is more or less clear, the mountains being covered in the early afternoon, or sometimes even in the late morning. I have never seen Coropuna when it was not covered far down from the summit with snow.

OFFICE OF THE COLLECTOR
ADDRESS ALL COMMUNICATIONS FOR THIS OFFICE
TO THE COLLECTOR OF CUSTOMS
NEW YORK, N. Y.
IN REPLY REFER TO

TREASURY DEPARTMENT

UNITED STATES CUSTOMS SERVICE

PORT OF NEW YORK

WH/B

B-345/02

April 13, 1911.

Mr. Hiram Bingham,

Yale University,

New Haven, Conn.

Sir:

This office is in receipt of your letter of the 8th
instant relative to certain equipment being imported by Yale
University for use in connection with a scientific expedition
which is now being prepared.

In reply, I have to advise you that upon arrival of
the articles in question, if it is found that they are imported
for the use, and by order, and are to remain the permanent
property of Yale University, and if they are intended for use
in scientific work, and are specially appropriate for such use,
they will be admitted free of duty.

April 13th 1911.

Dr. Hiram Bingham,

Director, Yale Peruvian Expedition,
New Haven, Conn.

Dear Dr. Bingham:

I regret that this letter has been delayed, but I have not
been well the last week.

I have studied several works and carefully considered the
subject. I earnestly suggest to you that, if possible, you al-
low me more time for the cross-section of the Andes. It will be
possible to do the work within the time allotted if the conditions
are ideal and no unexpected difficulties occur. But some allow-
ance should certainly be made for unforeseen difficulties.

Perhaps in a month and a half I can cover the ground you
wish in the valley, and this would give me an additional month
to get the cross-section in a satisfactory manner. If you want a
larger area covered in the valley, perhaps I could determine some
points which Mr. Ellsworth could use in filling in details.

I also think that the survey of mountain Coropuna is liable
to take more than a month and time will be gained for this by the
arrangement proposed above.

Of course you understand that I am making these suggestions
from my point of view. It has struck me that there is a great
contrast in spending 2½ month in a limited area and only a month
for the reconnaissance of 2-300 miles.

*)in regard to my work

My idea is that you divide my time more evenly between the
three main problems you have set me. I trust that these suggest-
ions will meet with your approval, although I realize that you
may have good reasons for wishing me to remain with you in the
valley. It is of course for you to decide where the sacrifice
is to be made.

I beg to thank for your letter which contained the check,
letter from Professor Bowman and itinerary.

I have had a conference with Mr. Purkins about your letter
to the President, regarding the loan of instruments. Mr. Purkins
suggested to the President that orders be issued to the Coast and
Geodetic Survey for the loan of a theodolite, to the Geological
Survey for plane-table and alhidade and to the Weather Bureau
for aneroids and boiling-point-thermometers.

FOUNDED 1856

THE PECK BROS. & COMPANY
MANUFACTURERS OF
HIGHEST GRADE PLUMBING FIXTURES
NEW HAVEN, CONN.

April 18th.1911.

Mr. Hiram Bingham,
Prospect St.,
New Haven, Conn.

Dear High:-

Your letter of April 5th. I found on my return from
down South a few days ago. I am certainly interested in your
Expedition and wish that I had the cash to help you out, but as
you know there are a great many objects which have to have aid
and I assure you that I am not neglected by those who have these
various objects in charge. Besides this I am getting all the
money together that I can in order to assist one of the business
enterprises which I am connected with and I do not see how I can
take on anything new just now. I hope that you will have no
difficulty in raising the amount you need and that you will enjoy
the trip to the full.

PNW/FHT.

EMD-MR

WASHINGTON

TOPOGRAPHIC BRANCH

April 21, 1911.

Dr. Hiram Bingham,
Director Yale Peruvian Expedition,
P. O. Box 901, Yale Station,
New Haven, Connecticut.

Dear Sir:-

Referring to your request of March 31 addressed to President Taft regarding the lending of instruments for the use of the Yale Peruvian Expedition, that was referred to the Geological Survey for consideration and to which the Director of this Survey on April 10 sent a favorable reply:

I have the honor to state that I am authorized by the Director to inform you that Mr. Kai Hendricksen called at this office yesterday and was shown the instruments and supplies listed below which he stated were desired for use in Peru:

1 Micrometer alidade.

1 Johnson tripod.

3 Extra level bubbles for the alidade.

1 Extra leg for tripod and 4 extra brass parts for the tripod.

1 18 x 24" plane table with wood and leather carrying cases.

6 Extra corner screws for the plane table board.

1 10-meter steel tape.

1 100-foot steel tape.

4 Stadia note books.

These articles will, in the next few days, be securely packed and held
awaiting your orders for shipment.

Very truly yours,

Yale Station, New Haven, Conn.,

April 21, 1911.

Dear Sir:-

I have received a letter from the Secretary to the
President, enclosing a copy of your letter to him of
April 7th, and requesting that I communicate directly with you
regarding the instruments desired from the Weather Bureau
for use on the Yale Scientific Expedition to Peru.

The desired instruments that cannot be supplied by the
Cost and Geodetic or the Geological Survey are aneroids,
boiling-point thermometers, maximum and minimum thermometers,
and sling-psychrometers.

As the expedition will be divided into two or three parties
for the field work we should be very much obliged if you would
loan us two or each of the above mentioned instruments.

Most of our work will be at an elevation of between 10,000
and 20,000 feet. Some of it will probably be over 20,000 as
Mount Coropuna is believed to be 23,000 feet high.

If the Chief of the Weather Bureau should care to have us
take special meteorological observations we should be glad to
receive instructions from him and would endeavor to carry them
out to the best of our ability.

It occurs to me that possibly he would, in that case, be able
to furnish us with special blanks on which these observations
should be recorded in proper form.

One section of the expedition will be located for some months
in the Urubamba valley, or its tributaries. Another section will

Superintendent, Geodetic Survey, that he was authorized to loan to
Yale Expedition the necessary instruments.

In your absence I took the liberty to reserve in your name, un-
der my signature the following instruments:

1 4" Berger Theodolite, #13 and tripod
1 Azimuth Compass (prismatic), #278
1 Locke Hand Level, #15
1 Aneroid Barometer, 16000', #319
1 100' Steel Tape (also in Meter), #647
1 Drawer Telescope (monocular), #207
1 Clinometer, #1
1 Pedometer, #8
1 Stop Watch, #10
1 Pocket Tape, #565
1 Pocket Compass, #209
1 Pocket Heliotrope, #417
1 24" Steel Straight Edge, #352

Above instruments are in my hand. It is not advisable to ship
them at present, as I want to test the theodolite for astronomical
observations. Please let me know where to ship these instruments,
and I shall attend to it promptly.

None of the Surveys furnish covers to the boxes and tripods, not
even to their field parties, and such covers are necessary. Realizing
how short was the time I took the liberty of acting in your absence,
rather than run the risk of being unprepared at the appointed time,
and have accordingly ordered canvass covers for the alhidade box, the
theodolite box and for the two tripods. Will you kindly inform me how
this outlay had best be met; whether I shall pay and present you the
account, which will be very moderate, or have the bills sent direct
to you.

I am glad to be able to tell you that all the instruments secured
are the very best kind for our purpose, almost all of them entirely
new. You will see that the supplies for my department to be furnished
from the expeditionary funds are thus reduced to a minimum. In fact

it will be not much more than above mentioned canvass covers, plane
table sheets and scales, star catalogues and tables and a flax tape.

From the instrument list from Geodetic Survey you will see that
I have secured a telescope and pocket compass, so that you can ex-
clude from the equipment list binoculars and compass.

The Survey has no aneroids for higher altitudes than 16000',
but I suppose that you have such instruments.

I shall at my earliest date send you a final list of supplies
to be bought for my department.

Will you kindly let me know what is the best method to pack the
necessary stationery under the conditions to be met with in Peru;
is a light metal box necessary or will leather or canvass bag suffice.
I shall take what is absolutely necessary only; I suppose that I shall
take along altogether about 2 star catalogues, 2 books of tables and
field books.

April 24, 1911.

Dear Billy:-

I telegraphed you this morning to please get ready to sail for
Port on May 25th. I am sorry that it has taken me so long to raise
the money for your expenses, but it was not until I had tried a good
many different people that I was successful.

I will send you in a day or two a simple form of contract which
I have used with all the men who are going on the expedition.
Briefly its terms are these:

In consideration of my paying all of your expenses from the time
of your leaving New York until you return, you agree to remain with
the expedition, subject to the Director's orders until the first of
November, on which day you are free to leave /requipa. This should
enable you to reach New York about November 23d. You will further
agree to prepare a full report on your part of the work, the report
intended to be printed as one of the chapters in the official account
of the expedition. You are to be at liberty to prepare and publish
any scientific articles that you please at any time, for publication
in scientific journals, but popular accounts are not to be published
until after the appearance of the official report and the official
popular accounts. I am under a contract with Harper and Brothers
which enables me to go a long way toward meeting the expenses of
the expedition, but this is contingent on no popular account being
printed before the Harper articles have appeared.

Although it is my policy to allow each member of the expedition
as much independence in his work as is consistent with the success
of the general objects of the expedition, it is understood that
no plans are to be carried out without being approved by the Director.

the health and sanitary arrangements for the expedition. Under
this head I include instructions as to suitable sanitary arrangements
for camps, directions for the prophylactic use of quinine, when and
where necessary. Instruction in principles of first aid in cases
of minor accidents and the general health of members of the expedition.
I hardly need to say that in case of sickness or accident to any
member of the expedition that your instructions would be given
precedence over any other part of the work.

In the second place your work would consist of an examination,
into the pathology of the region visited by the expedition and its
various parties. As soon as it becomes known that you are a doctor
you will be visited by the "lame, the halt and the blind" from many
riles around and you will need all the patience and tact that you
possess to cope with the situation. I expect that the expedition
will profit greatly from this branch of your work. You will be able
to put people under obligations to us, and the expediton ought to
accomplish considerably more than if it merely depended on government
aid and private funds.

In the third place whatever time is left over after attending
to the health of the members of the expedition and the pathology
of the region through which we are passing, or in which we are living,
will have to be devoted to the necessities which may arise in the
party with which you are working. If you are stationed with the
Collector you will assist him in securing and preparing his specimens
so far as you are able. When you are stationed with the archaeological
engineer you will help him with his surveys, etc. You will have
to be all things to all men, and to make it still more difficult, you

April 26, 1911.

Dear Mr. Hendriksen:-

I am very much obliged to you for your kindness in
looking after the instruments which we are to borrow from
the government. The Geological Survey has already sent
me a list of instruments and I am now writing to make a
formal request for the loan of them.

I do not know quite how to reply to your request for
information as to where to ship the instruments. Would it
not be better and safer for you to take charge of them
yourself? As they are chiefly for the use of the expedition's
"topographer", it seems to me that it would be better for you
to assume the responsibility regarding them from the beginning.
There is no necessity for their coming to New Haven. Furthermore
I do not believe that in case of valuable instruments of this
kind you can afford to be separated from them. It would not be
safe to send them ahead by freight. They should be packed in
such form that we can take them along as personal baggage.
Of course in the United States and Europe one can safely ship
these things, but that is not true of South America.

I am glad to see that you have attended to having a canvas
cover made for the boxes and tripods. I am glad that you propose
to test the theodolite for astronomical observations.

In regard

to the cost of these things, please forward the bills directly
to me, or else if you will send me a memorandum of the cost
I will O. K. it and have the Treasurer to send you a check to

I am delighted to hear that the instruments are so good and
that we shall be able to save so much that would have to have been
spent for your outfit.

In regard to packing stationery, the best method is a light
metal box. One of these will be furnished by the expedition to
party No. 1, which consists of Professor Bowman and yourself.

I notice what you say regarding desiring more time for the
cross section of Peru. It is impossible at present to decide this
question. Such matters will have to be left until we see how
things work out in the field. But you may be sure that I shall
not keep you in the Northern valleys any longer than is absolutely
necessary. Party No. 1 will be able to move quite independently
of the other parties.

You will be glad to know that I have telegraphed Dr. Wm. G. Erving,
922 Farragut Square, Washington, engaging him as the surgeon for
the expedition. I should advise you to communicate with him at an
early date. I hope he will be able to leave two weeks before the rest
of us and go down with Mr. Ellsworth to get things ready so that when
we arrive there will be no unnecessary delay about starting for the
field.

I hope you are making good progress with your Spanish.

April 26, 1911.

My dear Farabee:-

Thank you very much for your kind and interesting letter.
I know that it would be very much better if we could take a
trained archaeologist. I shall do my best to see that very
careful work is done. Although not pretending to any exceptional
ability, I feel that I do realize the fragile character of
archaeological evidence, and the necessity for the most careful
kind of observation and record.

My archaeological assistant, whom I believe is now in
Cambridge with you, will work the first few months under my
personal direction. His particular job as engineer will be in
the construction of roads and bridges, the clearing of the
jungle and in map making. I am sure that he will not destroy
any valuable material. I expect to take personal charge of the
actual work of exploration, although I shall leave the surveying
and map making largely to Mr. Ellsworth.

April 26, 1911.

Dear Sir:-

Replying to your favor of April 31st, regarding the
instruments which the Director of the Geological Survey has
consented to loan for the use of the Yale Peruvian Expedition,
I am very much pleased that it has been possible for you to
supply the articles needed by Mr. Kei Hendriksen, our chief
topographer.

I notice that the following instruments and supplies have
been reserved for us and that these articles will be securely packed
and held awaiting further orders:

1. Micrometer alidade.

1 Johnson tripod.

1 18x24" plane table with wood and leather carrying cases.

1 10-meter steel tape.

1 100-foot steel tape.

4 Stadia note books.

I have asked Mr. Hendriksen to be personally responsible for
these things and I should be very much obliged if you will hold
them subject to his orders.

Assuring you of my appreciation of your kindness in the
matter, I have the honor to remain,

Faithfully yours,

R. B. Marshall, Chief Geographer,
United States Geological Survey,
Washington, D. C.

DR. WILLIAM G. ERVING
922 SEVENTEENTH STREET
FARRAGUT SQUARE

TELEPHONE, MAIN 4072
CONSULTATION HOURS 4 TO 5 P.M.
AND BY APPOINTMENT

WASHINGTON, April 27, 1911.

Dear Hi:

Referring to the medical equipment for the expedition, I would say that I have gone over the matter very carefully with a number of army men as to amount and character of the equipment necessary for the use of the party itself, and for the necessary accompanying outside clinic and research work. As a result I feel that a chest (of the type of the "detached service medical chest" (with contents somewhat modified). for the army, to hold all the medical and surgical equipments, and a second case containing a folding microscope and other materials for bacteriological and other scientific and research will be essential for anything like careful work. If I have these means at hand not only to treat natives who may come for medical aid, but also to require into any new matters, I feel that we may make the medical report much more worth while, and not have the post of the expedition surgeon one of appearance alone.

Such an equipment could not be obtained in the open market without very considerable expense, but I am glad to say that the Surgeon General of the Army will make arrangements for having this equipment in toto loaned to me as surgeon of the expedition, with the understanding that I try to get a few specimen and some data on certain local diseases for the Army Medical Museum. As this would not interfere in the least with the published report, nor with the supplying of duplicate specimen elsewhere, if you had so intended( for the latter was not mentioned in your letter), I feel that it is a courtesy for which we should be very grateful, and I should accept it. The arrangement of the loan would be personal, and would not involve the expedition at all, but of course I have not accepted it before asking your permission. As it will take sometime to get everything together if we accept this offer, I would

WASHINGTON,

be greatly obliged if you could let me know by telegraph if I may go ahead
with it. The two boxes are as follows:

1 - service chest, steamer, shaped, wooden, metal bound, 26 x 16 x
12-1/2 inches, weight 100 pounds complete

2 - microscopic case, 12 x 8 x 7-1/2 inches, weight 22 pounds complete. That will unfortunately mean the better part of one mule, but certainly it would be impossible to approach this equipment in either completeness or compactness in any other way. Will let you know shortly about the unit equipment.

W.R. GRACE & Co.

NEW YORK

SAN FRANCISCO / VALPARAISO
LIMA / SANTIAGO
COLLAO / CONCEPCION
AREQUIPA / VALDIVIA

LA PAZ

NEW YORK

April 28th , 1911.

Prof. Hiram Bingham,

Yale University,

New Haven, Ct.

Dear Prof. Bingham:--

Replying to your letter of April 24th,
Austin Nichols & Co. say they will make a little lighter
case at the price you indicate, $1.75, which will be strong
enough for all purposes.

With reference to their ham and bacon,
they sell and quoted you on the "Epicure" Brand. They insist
that the ham is as good as the "Ferris" Brand, but if you want
the latter, they will furnish the "Ferris" Brand, but it will
cost you two cents higher, depending upon the market.

I send you herewith the check as pro-

mised.

April 29, 1911.

My dear Sir:-

Your favor of April 27th has just been received, and I regret to have to inform you that Mr. Bingham was called to Jamaica last Thursday, on account of the death of his father-in-law, Mr. Mitchell. He of course left very hurriedly and did not say just when he expected to return, but I think he will be gone at least two weeks.

In view of the fact that a loan of instruments has been secured for use of the Expedition from several departments of the Government, I feel sure that your suggestion would meet with Mr. Bingham's approval, unless perhaps he might object to the weight. However, as the time is limited, I believe he would approve your action on your own best judgment in the matter.

Dr. Wm. G. Erving,
972 Seventeenth Street,
Farragut Square, Washington, D. C.

TELEPHONE, MAIN 4072

AND BY APPOINTMENT

WASHINGTON, April 30, 1911.

Dear Hi:-

I enclose the "unit equipment" marked as directed.

I have a satisfactory McClellan saddle and saddle bags and a bridle which can be altered to a combination bridle-halter unless you are buying a lot of bridles anyway.

My compass and barometer are both unfortunately busted, and if you are getting several please include me

My revolver is a .38 Colt. If that is the calibre that will be in general use, can you arrange for the ammunition and dole it out when we get there, as I suppose you will do with the camp outfit?

The same is true of lantern, ax and thermometers. I don't know how to get a poncho here, nor a duffle bag. Otherwise I can look out for my personal apparel pretty well as I have indicated.

If you take the medical chest I can dole out the emergency medical outfit as indicated above on the ground.

I also can furnish a canteen, nosebag, picket stake, etc if you want those articles.

awaiting further instructions, I remain,

I can also take either a pocket folding kodak, smallest size, or one about twice as large picture, also pocket, but requiring focus, according to what would fit in best with those of the other men.

K. Hendriksen.

ADDRESS ALL COMMUNICATIONS TO
"COAST AND GEODETIC SURVEY,
WASHINGTON, D. C."

COAST AND GEODETIC SURVEY

Washington

May 1st 1911.

Dear Dr. Bingham:-

I have now been to U.S. Wheater Bureau; the Director, Prof. Moore told me that the Bureau never loans out instruments, not even to other Government Institutions, because the demand for loan of instruments is to large. Prof. Moore adviced me however to ask in Department of terrestrial magnetism, Carnegie Institution.

In the Directors absence, Mr. J.A. Fleming in charge of the office showed me the hypsometer which is in use in the Department. He also gave me several tables for hypsometer-and astronomical observations and assured that our expedition can loan a hypsometer and all the schemes for astronomical observations, which we want, if you will make a request for it to:

Dr. L. A. Bauer,

Director, Department of Terrestrial Magnetism,
Carnegie Institution of Washington,

"The Ontario",
Washington, D.C.

The list of instrument and blank-forms to loan will be:

1 Hypsometer with thermometer and box,
50 copies of blanks, Form 2
50 -#- -#, Form 3
50 -#- -#, Form 4
50 -#- -#, Form 5
50 -#- -#, Form 7
25 -#- of covers, Form 1.

The theodolite, which they use in the Department, is exactly of the same style and make as the one, I have loaned from the

Geodetic Survey, so that these observation-blanks will be most
valuable for us.

I am very glad to tell you that we thus shall have the benefit of the Departments experience; the conditions, under which they work in the field, and the accuracy in observations, which they want, are almost identical to the work, we shall try to carry out, so that we could find no more valuable help than the connection with this Department.

The thermometer, which the Department will furnish us with,
goes down to 85 centigr., which corresponds to an altitude of
14,750 feet. If you suppose that we occasionally will have use
for a thermometer showing higher altitudes, we will in that case
have to order them. One centigr. degree corresponds to a difference
in elevation of about 1025 feet, so that if you want to be
able to measure say 20,000 feet, the thermometer will have to show
79 deg. The Department buy their thermometers from Mr. Henry J.
Green, 1191 Bedford Ave., Brooklyn, N.Y.; they cost about $5 a piece.

I think it is preferable that you order two such thermometers,
as it is desirable to promote Mr. Green's interest, so that he makes them as accurate as possible; you will undoubtedly be able to explain him this better than I. When you write him, that it is for use with one of the Departments Hypsometers, he will know, how to make them. In any case, we will have to have one more thermometer, even if you suppose, that one showing 14,750' will be good enough; it would not be safe to take only one along.

I shall take care of the instruments, as you want it; I shall
leave Washington about the 20th of May to spend the remaining time
in Cambridge and New York; I shall ask the Surveys to keep the instruments untill that date and shall then take them to New York to a Safety Co., so that we easily can send them to the steamer.

As I wrote in my letter of April 23th, I have not been able
to loan an aneroid for higher elevations than 16000 feet; have you
aneroids for higher elevations? If not we will have to order them,
if you suppose, we may come higher up.

DEPARTMENT OF AGRICULTURE
OFFICE OF THE SECRETARY
WASHINGTON

G

May 4, 1911.

Dr. Hiram Bingham,

Director, Yale Peruvian Expedition,
Yale Station, New Haven, Conn.

My dear Sir:

Your letter of April 21st, relative to the loan of
instruments for the use of the Yale Expedition to Peru, received.
I have the honor to state that the Weather Bureau does not have
nor use the instruments referred to in your letter, and it
happens that Mr. Hendriksen called at the Weather Bureau on April
25th and the matter was fully explained to him.

The question of the most suitable type of instruments
and boiling-point apparatus was fully discussed with Mr. Hendriksen,
and he was given the addresses of contractors from whom standard
apparatus could be obtained.

Justus Perthes' Geographische Anstalt

Dr. A. Petermanns Geogr. Mitteilungen

Editor: Prof. Paul Langhans

Gotha,

Sir,

„Petermanns' Mitteilungen" desire to inform constantly their
subscribers, i. e. all who are interested in geographic questions,
of all events in the vast field of exploration in Geography. They
also wish to keep their readers well informed of the advancement of
voyages of discovery.

I therefore take the liberty to request your kind support in
this effort by sending to me short notes, written in your own lan-
guage, on the progress and the results of your important enter-
prise. I hope that this will answer likewise your desire in giving
the largest possible publicity to the news of your exploration work.
These notes should be made as short as possible.

In case you should not have already bound yourself as regards
the publication of the final results of your voyage, on your return
to your country, I beg to put at your disposal the necessary space
for a detailed report in the „Mitteilungen". Furthermore I would
willingly take charge of the making of supplementary maps without
any charges to you. For a sheet of 8 pages a fee of 64. — marks will
be paid.

Trusting that my proposition will serve at the same time your
interests, I remain, Sir,

W.R. GRACE & Co.

NEW YORK

LA PAZ

CABLE ADDRESS "GRACE"
HANOVER SQUARE
P.O. BOX 286

NEW YORK May 9th, 1911.

Prof. Hiram Bingham,

Yale University,

New Haven, Conn.

My dear Prof. Bingham:--

I am going away on Saturday, and will not be back for about six weeks so that I will not have the pleasure of seeing you before you start on your trip for the South.

I send you herewith the following letters of introduction:

George Eggers, Esq., Panama, Panama.
D.S. Iglehart, Esq., W.R. Grace & Co., Lima, Peru
H. S. Emerson, Esq., " " " " " "
H.A. McCulloch, Esq., Southern Ry. of Peru, Mollendo, Peru
H.A. McCulloch, Esq., " " " " " Arequipa, Peru
W. L. Morkill, Esq., The Peruvian Corporation, Lima, Peru
L. Loiseau, Esq., Mollendo Agencies Co., Mollendo, Peru
A. Powell, Esq., W.R. Grace & Co., Lima, Peru.

I think these will answer all your purposes, if not, however, you are at liberty to use my name at any of our offices, and ask them to do anything that you think will be of service to you.

If you have time I would be glad to hear occasionally how you are getting on, and with best wishes for a very successful trip. I remain,

DR. WILLIAM G. ERVING

WASHINGTON, May 14, 1911.

Dear Hi:

I was sorry to hear of your hurried journey to Jamaica, and
hope that you have returned by this time.

I have just completed the medical outfit in accordance with
the plan submitted to you some time ago, which, at the suggestion
of your secretary, I carried out owing to the lack of time at hand.
I feel that this amount of equipment is necessary for the work at
hand, and if you do not look at it in the same light, I think it
would be wise to take it at any rate as far as Cuzco before making
any change. Thanks to the aid of the War Department the cost of the
expedition of the medical equipment should be under $25.00. The per-
sonal medical kit noted in your unit equipment list can of course be
made up from this at Cuzco. I will also have the museum equipment
ready in a few days, and I think your naturalist, or any of the rest
of the party will find it perfectly suitable for their use as well,
as it is not only the ordinary, but also the oil immersion, and is
very compact.

To the following queries I would like to have some information
as soon as you can supply them:

1. Does the order hold for me to go down a day before the 25th instant? if so what is the name of the boat, and the address? as I shall be obliged to have my baggage ready for sending at the end of the week.

2. How much funds do you wish me to take personally? I should take ordinarily something less than $100.00 for incidentals, but if you wish me to pay my own living expenses, etc. until you arrive, and then give the account to you, I can do so.

3. I am planning to take a three and a quarter by four and a quarter Eastman folding Kodak. Shall I arrange to get my own films here, or have you some arrangement by which you can get them well under the regular rate? I thought of taking about twenty-four dozen films.

4. Shall I leave to you the bridle-halter and ammunition for my .38 colt, and the other articles crossed off on my list?

5. Review of the great importance of vaccination for typhoid as is carried on at present by the army with the greatest possible success, I feel that it would be very wise, and relieve the expedition from much danger of trouble, if all the members who have not had typhoid would be vaccinated. Hendriksen and I are being vaccinated here. The process is very simple, and if I come down with the party I can vaccinate it at that time. Let me know so I can get vaccine.

6. I see you have no note as to water bottles. Do you not intend to take them, is the water supply by the side going to be safe?

7. I do not know your arrangements for mosquito bites, which is of course distinctly a medical feature. I presume you have arranged for them, if not I can get a set of six frames to fit on to individual

cots, leaving plenty head room, and covered with net. These are made
for government hospital cots of the "Gold Metal" type, about 77 x 23
inches, but could be made to fit a similar cot of the same size. The
frame and net together weigh five pounds, however. If you have arrange
ments already made, it occures to me that as I will be shifting from
one party to the other in emergencies, etc., I should have such an
equipment for myself, in that case I can arrange to obtain one of these
folding cots with frame complete. These cots weigh twenty pounds.
Kindly let me know if either of these arrangements would be desirable.
In that connection I will also say that there is a possibility that I
will be able to obtain in place of the duffle bag, a bedding roll issued
by the quartermaster's department. This has the features of a duffle
bag, and also serves as a water proof bed with a double cover, and would
thus take the place I think easily of one blanket, and at the same time
an excellent receptacle in packing. I can not give you the exact weight
but they are probably about five or six pounds. I shall try to get one
for myself Monday, and if you desire more, I may be able to get a loan
of a set of six.

I think that comprises the chief items I wish to ask you.

K. Hendriksen.

ADDRESS ALL COMMUNICATIONS TO
COAST AND GEODETIC SURVEY,
WASHINGTON, D. C."

COAST AND GEODETIC SURVEY

Washington

May 14th 1911.

New Haven, Conn.

Dear Dr. Bingham:-

I am very sorry to learn that the dead of your father-in-law necessitated your going once more to Jamaica; it must be very trying for you, especially at the present time.

I am through with my work here in Washington about the 22nd. inst. and intend to go to Cambridge; if you need help and you think I can be to any use for you, I shall be very glad to come to New Haven and do what I can to help you finish up things.

I have ordered the two thermometers mentioned in my letter of the 1st. inst., as I thought it would not do to wait until you returned.

I need a Spanish book for time- and latitude observations, but I do not know where to write to order it; may be you can find out where to order it, I will be most obliged to you for doing so. I hate to border you at the present time, but I have not been able to find out about it.

The title is:

Determinacion de la hora
y de la latitud geografica de un lugar por la observacion
de los momentos en que las alturas de algunas
estrellas son iguales.

Por
A. Obrecht.

Santiago de Chile

Soc. "Imprenta y litografía universo"
Huérfanos, 1036.

like/

If possible I would the book strongly stitched in cloth.
If the book be send to W.R.Grace, Arequipa, I would have it
when we arrive there.

May I suggest to you, that as many as possible of the cameras, which will be taken in the field, and especially Prof. Bowmans, be mounted with two small levels as shown in the following sketch. Plenty of pictures of the country travelled through will be most valuable to me after our return, but much more so, when I know that the pictures have been taken with the camera exactly level; an ordinary round camera level would not be so good.

All covers are now made for boxes and tripods and everything
ready for shipment.

I am delighted to know that we shall have such a careful
and able surgeon as Dr. Erving; I am most pleased to have met
him.

May I remember you about the aneroids; I have one going to
16,000 feet; may be we do not need them for higher altitudes?

Enclosed please find the plan for my departments work; I
hope you will find it satisfactory; you will understand that it
is impossible for me to give definite notes in forehand.

P.S. Please add to the list of instruments to be loaned from
Department Terrestrial Magnetism:

6 tripod stubs.

Enclosures.

May 16, 1913.

ADDRESS: Box 901
Yale Station,
New Haven, Conn.

Dr. L. A. Bauer,

Director, Depart. of Terrestrial Magnetism,
Carnegie Institution of Washington,
"The Ontario",
Washington, D.C.

Dear Sir:

As Director of the Yale Scientific Expedition to Peru, I am writing to ask whether you can loan our Expedition a Hypsometer and the following blank forms. The list of instruments and blank-forms which we should like to bowwow, is as follows:

1 Hypsometer with thermometer and box,
50 copies of blanks, form 2
50 -#- -#-, form 3
50 -#- -#-, form 4
50 -#- -#-, form 5
50 -#- -#-, form 7
25 -#- of covers, form 1.

If you find it in accordance with your policy to
loan us these things, will you kindly communicate with Mr.
K. Hendriksen, of the Coast and Geomatic Survey, who is to be
our Topographer and who will receive and be responsible for
them.

May 16, 1911.

Edward Sawyer, Esq.,
Stamford, Conn.

Dear Ed:

Many thanks for your letter. I have tried to follow your advice but so far without success. Payne Whitney's secretary tells me it is very difficult to make an appointment with him as he is so seldom in town. At his suggestion I have written Payne a letter, asking for an appointment, as this is the third letter I have written him without receiving any answer from him, I have not much hope of better luck this time. If you could do anything to make this interview possible, I shall greatly appreciate it.

We have got all the money now except $1,800., the cost of one unit in an expedition of six men.

Faithfully yours,

May 16th, 1911.

Dr. William G. Erving,
922 - 17th Street,
Washington, D.C.

Dear Billy:

In reply to your letters of April 25th, 27th and
30th, I am sorry that my enforced absence in the West Indies
has delayed reply to your letters.

In the first place, it may be necessary for you to
go alone on May 25th. The man whom I expected to send with you
has been discharged and I am afraid there will be no one to take
his place until later. Do you mind going down alone and gett-
ing the mules together? If you will come to New Haven or New
York at your convenience, we can talk the whole thing over and
I will tell you all I can about the conditions.

I am very glad that you got the medical equipment
from the army. I do not object at all to the conditions on
which you obtained it. The weight is a serious matter but it
is certainly worth while to have such a good equipment.

Now with regard to the unite equipment, I have order-
ed a complete saddle and saddle bag outfit for you uniform with

May 16th, 1911.

Address: Box 901
Yale Station,
New Haven, Conn.

Messrs. Abercrombie & Fitch Co.,
57 Reade Street,
New York.

Dear Sirs:

On my return from the West Indies, I find your
letters of April 7th, 8th, 28th and 29th.

I desire to cancel the order sent you on the
27th. This is the second time that you have written me that
you have never had the pleasure of my name on your books as
a charge account. The first time you told me this was when
I outfitted for my second South American Expedition. At that
time I overlooked your carelessness and reminded you that I
had bought on charge a complete outfit for my Venezuelan
Expedition of five years ago. I am tired of such loose methods
of doing business, furthermore, it is not customary for Pro-
fessors of Yale University to omit the payment of their bills.
It would have been very easy for you to find out through the
treasurer of the University whether I was authorized to incur
any indebtedness for the University. I am glad that none of the
items ordered on the 27th ultimo needed to be made to order,
so that there will be no loss to you in the cancellation of
this order.

Incidentally the boots were to be made to order
but as you have carelessly lost my measurements after I had taken
the trouble to be specially measured three years ago, this
order you were not able to fill and I shall take pleasure in
placing it elsewhere.

This is not the first time that I have had trouble
with my orders to your concern, otherwise I should be inclined to