The sun. [volume] (New York [N.Y.]) 1833-1916, 1907-10-24
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.al vth ne wtfe. Nal,.l Inoni.
Tho Nndcs ou Vsv ~ a. tho head
at t lowell ss' rpooa,ic.l expedition.
". ... hing. ~ toll st,cut Mars that oo
OF. H.. 'rgI l.-fo,~. lat he vas ton la,.v
.n.. ...tug ne sa,ivcs and things ~ 60 into
Ir'I
ru. " vow " ~ ard s,c Mrs. Todd she u
roll ,p, alout u. he s,id "As coon 40 80
car. 'o earth to-day abe started for o
eiru,r pr'y ~ W rark avenue. Catch
tcr po' r"cn ,uuis = and you'll get your
w~'ar,IaN Wore going RICH, away from
hrrr IIrrr, my man. handle that thing
- { yuu lpvod ~"
Nj =, We Started south" began Mrs.
i,ii up "a Park venue "on May ~ to
ct- r,N Mars ut ppt sitiou. This year
Wa. vs. cn'y "a jo.Ooo mI,es rom the
e,rIu. whereas the ordinary distance 10
about go. oOn, ON miles. when the planet 10
o. uprr =ltinn two Years hence II will he
s., n AM mites away from US and then 1t
VII rrce,Ns and receds after that and there
van h. no favorable opposition for Arisen
years Alec The atmospheric conditions
we're particular y favorable this year for
obs ryation- and altogether we could not
hsvn asked for better luck throughout the
tni
Il suppose the thing most interesting
about the expedition 10 that for he first
GONE up' on a Photographic platoon
very ristP made. in fact. The double
cane.s have been seen by Prof. Lowell and
others before this but did not appear on
where the air was steadier and that 10 why
our Garrtner camera got both canals. When
Others declared before this that they saw
csna.S running ia parallel lines but allied
70 secure them on negatives after reYeated
attempts there were many doubling Thorn
asses who maintained that observers were
seeing double that the whole thing was
a. optical illusion. Now the two bnes of
Of canals are n certainty.
We stopped TO look at the canal the
Panama one on our way down and saw
the splendid system Of work that Col.
I,nathala ,f tho ARMY Nhp in in cha rUo
has established there. Then We shipped
our Amherst College telescope. with an
objec, glass rs inches in diameter, and
other INSTRUMENTS thar included a very fine
celestial Gamers made especially for the
telescope 10y Gaertner OF Chicago.
Our frst stop ives az Ouayaquil. Ecuador,
and hen, alter a week at Lima. wea all went
away up in the pampa of lquique u In northern
Chile and set up our telescope in a part
Of the desert of Tarapaca. The AmhersS
telescope was the largest ever used in the
Southern Hernisphere, by the way. Mr..
Todd had been invited to occupy as a
station one OF the great centres OF the
nitrate industry and. the telescope was
mounted at the Ofcina ALBANIA
"ln the photographs that Mr.. Todd made
during the next six weeks there he was
delighted first of all to secure always the
double canals. The negative showed. too.
the conspicuous polar caps OF snow on
the pls net, white and dazzling. and the
large dark sreas and the fine markings
OF the Eamous canals.
we d~ismountcd the telescope IN July
81 because Mare was getting further away
by that time, and We went back to Callao
and Lima. From there we made several
trips over the Oroya railway. the highest
IN the. world. We went up to Cerro de
Pasco, is.oOO to $1,000 feet above the sen,
and here and. at even higher places-one
point was $500 feet high--Mr. Todd made
tests to learn how favorable were atmos-
pheric conditions at 50 great a height for
astronomical observation.
He first had a large metal tank built
In the railway shops and when it had been
st in place it was filled with compressed
air 10 bring the air pressure up to that OF
The sea level pressure. Mr.. Todd then cor
iinued his observations In the tank under
sea level atmospheric conditions and found
that he obtained results as good as he would
out in the open. His purpose in making
tho test, OF course, was 10 find out whether
astronomers who are subject to mountain
sickness and the headache and nausea
mat 60 with il at great attitudes. could
avoid the mountain sickness by working
in the tank. He found his idea worked
out admirably"
Mrs. Todd said that the members OF the
annular eclipse OF the sun on July 10. With
excellent weather conditions on their side.
They will proceed to Amherst perhaps
today, where Prof. Todd Immediately
VII legin TO elaborate his notes and print
ne great wads of plates for the benefit OF
ts students N astronomical workers In