New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1846-03-03
FROM the Detroit Advertise
From Lake Superior.

Extract OF letter dated Eagle Harbor, January
goth, 1916 Speaking OF the Eagle Harbor locations
the writer SAYS:
The shaft or vein No Is 81 feet deep the vein lie four
fee: wide for the frat 81 feet il varies from to Is ZACH
es-rich in nhuve copper alleged with silver; grey sui
phuret and chrs;aizeG silver also indications OF The
red sulphuret
Vein No. !0-I am down 80 feet. 4 feet wide; the
vein stone spar, filed with copper aud highly alleged
with silyer-he grey ore-besides the whole mass OF
vein being filed with copper. We are constantly
throwing up pieces OF pure native copper weighing from
l to los have now 20 tons of this ore out The vein
stone is soft and easily crushed.
We have seen an analysis OF the ore from vein
No 4. made by Professor w. w. Mather Ohio, on
the same location taken from the surface last fall by
himself, follows
The frs. specimen examined was from vein No. L.
thin slab of rock. composed mostly OF red supnuret
showing externally trace Of copper. When broken
few small grains observed in the fresh fractured
surfsce lite external and internal aspect was such
70 lead with eye Impractical in the peculiar
ties of the Lake Superior to consider II entirely
worthless The slab OF rock was broken in two and The
pieces haviug the least appearance otbeng rich we're pull
verified and .fied The puyezed mass gave so3 grains
Of sed rock containing some copper and So grains OF
copper in rough grains OF the size of sand and
fine gravel The e6 rock gave 10 grains OF copper in
minute particles The rock yielded 3s per cent OF cop
pc- Some OF this copper yielded By cutslation equal
10 81 oun.es Of silver 10 the ton.
Extract from letter dated Eagle River Jan 2l
1896 In speaking Of the works on Eagle River he
says
We now taking out large amount oil Tue SILVER
rock having struck At the depth of 60 feet The dig
ginQs never have looked vel. since have known
them as at present, and feel confident they will improve
as we progrcss. have party Of men at work on
the Bu;Is on well DEFINED vein of 40 fee: in width
A, Copper Falls they in fair way to estonish the
world. Child has struck moss OF native Copper In tho
centre Of his shaft which extends entirely across the
shaft 10 feet and equally large where it enters the
rock as any part OF the He has sunk over feet
on side Of it, without any appearance OF coming 10
ia termination in that direction. On the other side he
hEcl :iu f,rirf pet Il
thickness Of over foot. There are also two more
sheets in The same shat-one each side OF half an
inch in thickness
A. the Pistu-- Compary's works on The Bluff they
have rich and ell defined vein Much of the exposed
is tie vein il not surpassed IN richness of silver by
any mine being worked and on recond. saw one
lump Of rock TO. larger than four quart measure, that
was estimated by many who saw IT, TO contain over a
pound Of pure siver. The North American Company
has good prospsc: Their location takes the rich reiG
Of the i.ts5urg Compsny in ss than half mile from
the richest point on the vein. The vein which MI
Cnilds is 81 worS Copper Falls: has been traced on 10
TIE location belonging 10 the North Western Company
OF Detroit At Eagle Harbor the prospect Is very atter
Ing There than or three locations where
they are q: work. but what locks we'll
FROM LAKE SUPERIoR.-The Pontiac Gazette
publishes the following extract OF ie,;er from Dr.
petit Agent OF tire fitysuurg Co 10 o. D. Richard
son, ESQ
Hon o. D. MISUNDERSTANDING friend thought
world Inform thee aud through thee ny friend James
Darrah that an astonishing discovery has recently been
made by Richard Jennings mine captain at the Ctj
reiss Of the Pittsburgh Co. Abou. the 18th Of Decem-
b- he struck lode - feet East OF the old one or
the main lode perhaps Che other being only branch
and in days dug out Il of beautiful rich copper
and silver ore-of which 1000 pounds Is pure copper
cry rich OF sILvERmuch the richest largest humps oil
silver that ever coo pounds OF this was GOT out
of the lode pIecehe 600 pound mass Ia exceed
ing rich Of virgin rer3000 pounds of so per cent ore
copper aad .!vcr-snd 10000 pounds OF 20 per cent
GRE and great amount laid bare in this vastly rich lode
in which when left nhe 3Oth ult) could al single
sight copper prominently standing forth In the
great lode Khan have IN al on Lake Superior be-
In Ehe short time tina. they have WORKED mat mine
the returns are