New-York daily tribune., 1845-05-07
CONVENTION OF
AMERICAN BIOLOGISTS AND NATURiLlSTS.
4. ye--. Y:rys
i: Ee--Rsrss.
rREPoRrEo roR THE TRIBUYg1

The greater part OF TN hour was taken up this
morning in forming and proposing Committees ca
various subjects 10 DC reported upon next year
Among other matters the Convention decided 10
hold their next annual meeting IA New-York City
on the first "Wednesday in September.
Hon. NATHAN APPLETON OF Boston sen; sub
scripton OF $50 TO the Geological Reports
The following axe the names OF the Local Com
uli,ss 10 make arrangements Tor the next meeting
IN New-Iofk
Mso- JOSEPH DxLArrELp; Prof. JoHN w DSAFEE
P-ui. JANIS RESwIck; Il hSkNcoA..
Prof. CIRCs MASON; CHAALkS VI. " hAN.L1i
Hou. JAMES TALLNApSE; {. CoSGpoS. Esq p.voNNH'
gon rrtEs lnrsH: Prof. JAMES HAIL. Aoa7y,
Prof JAMES e prHAr: wB. KISSEI, Esl. Newark :
: VAN gsSsslIAEs NJ. Com MATHEW c. FERRY. Z
IS Naval Lycsuui. SrOoSlSH-5
The Committee on Trap DYKES was enlarged by
the addition of Dr.. Jackson. and Mr.. HAYES, oi
Portsmouth Or James & PercIval was proposed,
but he had positively stated that Re would not al
tend any OF the meetings OF the Association.
An invitation was accepted from Mrs. Whitney,
the widow of the inventor OF the Cotton Gin, for all
the gentlemen present and their ladies tc attend an
evening paIty sI her house
Dr. Red was appointed Committee 10 report
on the Quart VEINS ol Berkshire Co
The subjcct was again broush; UP OF the
COPPER MINES or LAKE suPERIoR.
Prot IlCNSOi la1 Sdlu III MS sd ccltt Al4A ttaE
Islands between Lake Huron and the Sault st
Marie, wee OF the same iossilhterou> character as
the limestone ot Niagara. Al the SSult we come
20 the red sandstone Here the RAPIDS are or
miles wide and nearly mile long; the TAI Is aooui
Is feet; II would b. very easy 10 make canal
round them. a the excavation tor the whole mile
would be in soft grey sandstone easily blasted, aud
the sides OF which wCuld form good walls tor NE
rock. On the Hat ground between the Sauit fll-
iage and the Lake lnere is large quantyoi oou!-
derS of many tons weight; 81 SIenite. poIphfn,
greensboro trap rock. with ep6ote and sandstone
These We all been brought hltherbv dfitt ice; ana
we have abundant proc. Of this at along the shores
of the Lake There are two well marked od
shores OF the Lake One Is a gravely beach 4
short distance off, and another IS al The base et me
hills; and there Is large bog between the two
The sol on the hills Is good and supports tine trees
rock maple, birch. larch and Norway pine. True
there is no limestone the borders ot the lake ;
but there are enormous veins et calcareous spar,
enough for all the purposes OF iiuXng the copper
ore and the old red sandstone which is found up
the Lake will lust do 10 build the srnelIng furnaces
with The rocks dip all reund the Lake towards
the water At an angle of about Il degrees ana run
Y E.aDd w. Tns prevailing rock IN the neiShbor-
hood OF the copper 10 coarse coDslomsIate, WIN
trap dykes lntersecting: the Gre Is ahydto-sil'cae
of copper, and was known TO the old voyaStrs as
the green rock. Veins of black oxide OF copper
nav. been opened al Point keweeweaon that con-
tain from 50 to 20 per cent OF copper. Blutis OF
coHglomerate and trap dykes lnerseCtns are found
| IN p'ace beteeen Agate harbor and Eagle harbor,
with veins of cacsreous spar, lntersperseo win
datholite and pieces o pure native copper; these
! have the same evidences oi lgneoHs ouslu as the
trap rock There Is also vein OF phrenlte i !eet
wide ana every crystal IN which had crystal OF
copper attached. n short every vein that Is found
opened III that region, ino matter what the base
ls) contains more or less rlver But the best nlne
Vet found Is The ore on Eagle River the veIR Is
/ fr,u1 ,n - wide and the contain
tai.ic copper and silver amysdyoidal elobuses with
crystals OF copper and PARTICLES OF silver; and Ire
! qusntly pure copper and pure silver IN ule
same gIobuIe We also find leaf copper and les!
silver and octahcdral crystals OF silver. (Dr. ],
here cxhIblted tine specimens OF all these mtne-
rails The great copper rock found on the Ontona-
gon River had ssrpentlne attached 10 II; and the
only copper We Ind that Is mixed up with serpen-
! tine is on isie Royal, whence that great rock must
| have been carried Oh a faft ol ice, and landed
above the raplds as there is copper IN stiit with
! III miles of wh-fe 1t was found In Nova Scotia
the copper that - fund IS Just " here the trap
| goes through tie sandstone, and IgneoHs action
has probably rcdaced the native copper. But the
copper on Lake superior, confess thnk 10 have been
part primary copper ~ The gkos (as Dr. HougEon also
,oes brought up from The molten by the trap rocks
Ii badly wrought slsg ii old Pluto bad not separa-
all the from the Stag before he LEI the trap rock
push up the service OF There Is vein Of
COPPER II feet wide and one mile lrng that will repay all
the outlay Of the Company. The Cornish nners there
haya sunk ur shafts the banks Of the river intending
work the mine under the river One shaft is already 81
feet another 40 another 80 feet deepa done BY hand
power The deeper they the richer tile mineral Is and
contains about onefourth slver Col Gratot has the
snperineAence there And in working single cxpo
ration shaft the Eagle River mne tho metallic contents
b ought out by hand worth $4,000! The rock IL
anygdyloda and blasts very easily IL does not take
than 20 minutes 20 make hole lor blast. There Is
water ALL although they have worked down
Is feet below the bed OF the river and Instead Of the water
sf the river ro1br them, hen the dam Is bu II will be
their creates. friend The water will raise tie fom
the mne pound It, blow the blast fsr the smelling furnace,
and the woJG for the buildings. The prevailing ores
there are the black oxide copper and the scae OF cop
per thers suphuets OF copper found In the whole
region Cue large vein contains in The cesn
IS copper besides sVer and the Cceper they
so The better II becomes
Prof Detrfg suggested that If that wPs the case
universally plan for sp cuat!on would be 10 buy
pad.r somebody. (Much laushter)
Dr. Jackson warned people, however. against
being sangne; there would be seod many mines
opened there and many bad specula,ons there
the Name timber lands Laushter) The copper veins
are easily found they South 25 degrees West, and
wherever lind ray!ne with the depression conormabe
that line weare To fud Of copper wet
place in ravne where the plants uxuria1tly II Is
proof veR decays faster than the enclosing rock
aud that vein pper The best nx neces AIRY 10 reduce
copper the cacaeous spar aud that is found In
abundance there The great question is Wil these cop
per veins hod out? In the West India copper miaes the
copper changes 10 sulpharets penetrate the
mine The laws OF gravity are IN favor OF the TACT that te
deeper go the richer Will be the vein. How shall 90
down in the earth un; TO that spot where
adle the melted copper forget how far Professor
Rogers said that would be-
Prof Rogas-About ten miles Caugbter)
Dr Jc,rkson.-Wwe have abundant proofs IL our
specin COPPER snd silver have melted toge
her md silver IN the copper, but nd trace
the copper in the silver We ind a,o zezag veins OF Ill
running through the copper now il Try 10 make
amalsan OF metals Il melt the copper and bring
the silver With IL, part Of the silver Will unite
with the copper aud remain pure silver III neca
nlcal contact with II; but II melt tie silver aud bring
the COPPER in contact with IL they will thoroughly ainasa
maze Aud this gulsr segregation Ind done by nature
In the copper Of the Lake Superior Region. The
paR proposed separating tue copper and silver IN these
ores Is to all the copper ste blue vrol then make
the silver into chloride VI silver reduce II, and send III
the mint The copper will be broken up at the mine,
carefully washed iud picked ard then packed up in keg-
and sent Boston 10 be sHleitet. There is Alec
ore Of antimonia silver found these mines. The sand
stone OF this region copper IN IL bat a The point OF
contAct lie rap rocks there is little native copper
The rich OF black oxide Of copper opened at Fort VIII
bins IL thick and contains 10 cent Of copper.
In ton Of the ruGe delivered b. the miner the
pit bank Eagle River there the following per
OF silver 80 -