The New York herald. [volume] (New York [N.Y.]) 1840-1920, 1845-05-10

misty would also take its part in researches of this
Iacer ior nature often presented chemical facts very
boratory, and Others fine Illustrations of well known
principles He might have occasion to refer to this SUBJ
ssG. neieaer ana would now directly to the con-
sucleuon oi the mineral region of Lake Superior. On
entering St Marys river the outlet of Lake Superior
they lett the fossiliierous limestone which occurred
aDundanly farther to the souh-we on the shores
OF Lake Huron and the red and grey sandstones
and conglomerates which bordered Lake Superior The
OF the waters of Lake Superior over slightly inclined
sheets OF red sandstone which dip towards the lake. and
rushes with great velocity producing roaring rapid of
more than two miles in width The fall is about Is feet
and the distance thence to the lake about one mile It
contemplated to cut ship canal from the lake to the
river before the falls only three locks OF feet each be-
ing required and the excavation through SOFT negrain.
ed sandstone Will be easy whilst the rocky walls will
give permanence to the canal embankments The ground
around the falls is covered with of large blocks
There specimens Of the rocks bordering the lake
which were mostly brought to their present 10.
over more elevated land than has been covered
with water since the historical epoch. There
have been evidently two or more paroxismal eleya
tons Of its borders subsidencies of its bottom for
there two well marked ancient shores of the lake
from one to two miles inland The first is the gravey
the base of the hills two miles further from the
Lake thick growth Of covered spruce trees and
tween this and the other dark Doggy swamp covered
with dense forest Of white cedars mixed with few
s s
rock maple, yellow berch, lalch, and Norway pines
These forests are like those in the eastern part Of Maine
that will soon be erected for the fusion and sme
ing OF copper and other metals Limestone does not oc
cur on the borders of the Lake. but large veins OF caca
reous spar found in sufficient quantity to supply all
the ux that will be wanted for working the metals
for building purposes The sand stone is an excellent
material for the construction OF furnaces, and
be obtained, in several places near the mines
This red sandstone observed to dip generally towards
the Lake. at least far Jas my observations extended
At the outlet Of the lake. the red and gray sandstones
strata alternating with each other The strata then dip
towards the lake. or to the southwest 10 degrees and
s run ns W G Al Eagle narSor the
but still towards the lake this is generally the case
Kewena points and if the strata should be found to dip
to regard as basin Of depression or could not
sign to eevatng forces which generally act in lines the
Copper Harbor the rocks are coarse congomerate
and trap dykes which incrscct it. IN the former cons
copper occur and has long been known the Green
Rock. The black oxide of copper and brown siceous
ide also here vein having beenpened during last
winter at the barrack of the troops at Fort wilkins At
this place the trap rocks show themselves in large mas
ses. At Agate harbor the conglomerate is again cut
found the uncture of these rocks is filed with small
but very perfectly formed agates and nodules Of
Ian and chalceiony The pebbles on the shore
agates hence the name of the harbor From Agate to
Eagle harbor cliffs Of conglomeIate and abutments Of
the trap are The latter often contains pieces Of
native "copper" and the former large veins of calcareous
SPAR occasionally strung together by aments Of native
copper and tinged with the green carbonate Some Of
out into deep water in the lake. At Eagle Harbor,
vein Of daholite with black boro Of iron
and "copper" and flaments of the metal nterspersed.
The daholte chrystals often contain scales Of bright
red metallic copper. Veins Of prehnite are very album
dant in the trap and always contain particles Of pure
wide, and every chrystal Of the prehnite contains
scale of copper thin gold foil perfectly bright
II is certainly very remarkable that all the veins OF min
erals which have examined in the trap region
tain more or less metallic copper either in fine particles
length in giving details Of the mineral wealth q this
region and such statistical details useful to the mi
ner He could not form satisfactory opinion as to the
origin ofs copper its copious admixturewith silver
great difficulty but considering every thing, he was dis
posed to regard this copper and silver deposited there
the shell Of the globe first broken up by the action
of internal ERE, by which these metals fused and
his doubt of the permanent fertility of these Mines
native copper, when found in Masses was suspicious
symptoms; therefore, too much caution and foresight
could not be exercised by capitalists in listening to
ects for working these mnes before they made invest
ments in the enterprise.
Prof SHEPARD was struck during DR.. Jacksons ad
dress with the statements he made and the richness OF
the geological specimens presented by him. He also
mating the value Of these Mines The appearance OF
native copper was suspicious and he feared that disap
pontment would follow any ncautious enterprise in re-
gard to the working of them. to be recollected
that where trap rocks occurred in ridges of sandstone
copper was found but not known that such local.
ties always presented abundant mines; and in this
these rocks would in all probability prove trap" to
catch the specuator.
s. lest you should have too many competitors in en-
barking in these mining operations. Uaughter)
Professor sHErARD-The temptation sir in this case Is
not strong enough to induce TO give advice to
friends contrary to their interests if did it would
be undoubtedly attributable to brass than copper
Dr. JACKSON added that before visiting the region de
scribed, his views similar to those Of Professor
Shepard and impressed with the unpromising
Of the appearance Of native copper the West Indies
there never was rich found in any place where ma
tive copper occurred yet he must say that the exraor
binary richness of the veins of copper found in the
copper region Of Lake Superior, made it not
tirely parallel with others,
The Society adjourned to Monday morning
New HAVEN, MONDAY, 81 o'clock, A. M.
PROFESSOR DEWEY called the meeting to order
and announced the business of the day.
DR.. AMOS BINNEY moved that the subject of the
distribution of molusca, formerly committed to DR.
Booth, be continued in his hands for future report
Adopted.
DR.. BINNEY again moved that S. S. Haldeman,
ESQ.,, and T. +. Melsheimer, M. d., 'and John l.
LIE COnte, M d., be requested to prepare synopsis
of the coleoptera Of the United States, including the
specific character and synonymes OF all the known
species.
The PRESIDENT read recommendation of the
General Committee, that the next session OF the AS
soclation be held in the City Of New York, IN Sep
tember 1916, which was carried. The following Were
nominated as local Committee to carry out the
necessary preliminary arrangements Major James
Delafield, Professor J. Renwick, Professor Cyrus
Mason, Hon James Tallmadge, Hon. Luther Bra
dish, Professor James +. De Kay, jeremiah Won
Rensselaer,, M. d., Professor Schnell Draper, II.
Brevoort, Commodore M G. Perry, U. s. NJ,
Charles M. Wheatley, Professor James Hall, AL
bany; VIM. b. kenney, Esq. Newark; Charles
Congdon, Esq, Brooklyn.
Professor SHEPARD rose to say few words farther
the subject of DR.. Jacksons communication of last
evening, relative to the geology of Lake Superior He
Professor 81 had opportunity only to say that he could
not coincide with the view brought forward by that
gentleman, in respect to the peculiarly Of the copper