New-York daily tribune. [volume] (New-York [N.Y.]) 1842-1866, 1850-08-22


ooales q water from the Oak Orchard Acid
Springs OF Western New. York. and bad Submitted
them ior microscopic examination 10 DR.. Henry l.
Bowdlteh oithe Cambridge Lsboratery. This gen.
reuan prepared drawings exhibiting the structure
nreVe,ed BY the microscope, which were submit
ted 10 Proi Gray, who pronounced them to be in.
perfectly developed vegetable organisms.
The paper on the ProOstite Of Nsv Jersey was
hen prttented by Mr.. HESRY WURrz and was
followed ey dhquisition on American 5podunene,
| BY hr 6EoHGE J. BRUSH. Both OF these were
PROV cry Illustrated by chemical formulas, and were
OF purely scientific interest Being OF little or no
I general interest, they may be paused.
The next paper was upon the DimOrphism OF
Copper In the course Of Elecsotyping, by WIN. ?.
| BLAME OF the Yale Aualy tical laboratory. Toe
subject OF his observations called out some discus.
! son. The following brief abstract embodies the
main features Of the paper:
DIAoRPHIsA OF COPPER
Mr.. Blake stated that the result of some electro
type experiments was the production Of crystals Of
Copper not Of the Monomesric system, bat in
small hexagonal prisms The faces Of the termi-
| nal planes being small the angles could not be
conveniently measured; and Mr. Blake had en-.
deavored 10 produce larger cry stalls before deciding
upon the system 10 which they should be referred.
He had since seen crystal Of Native Copper from
South America. in form Hexagonal prism with
one terminal plane nearly three quarters OF an
inch in diameter. There is, therefore, good evil
deLce OF the Dmorphsm OF this Meta.
ADULTERATIoH or yERAILLIoN
Prof Horsord stated that tie examinations OF
numerous specimens Of Vermion show that by
far the greater portion OF toe various VernioDs IN
the market are adulterated from one half 70 two
thirds. Bot three specimens were found pure
one from Trieste, one from China, AMI one from
this country Some samples examined did no.con-
tain particle Of mercury, yet strikiogy resembled
the pure article. The princpal authorizations used
were Chromste Of Lead, Red Lead, Carbonate Of
Msenesia and Sulphste Of Lime Prof Fl. recom.
mended a. test for the purity OF Vermilion, to
apply the agency Of heat until all the mercury
present became yolstiized. The residue consists
ofimp urities.
The remainder OF this mornings business musl De
deferred little time and space are waxing short
/ have obtained a full abstract Of some important
observations by Prof WALTER X. JOHNSON on the
Sod rnatons Of the Atlantic border, together
with the valuable comments OF Prof. WIN. B. Ro-
gLRs thereon, with which | conclude for to-day.
Prof ROBERT r. Johnson Of Washington, sab
mitsed the following observations upon
The GOLD FORMATION OF NORTH CAROLINA
VIRGINIA AND MARYLAND.
The bet or district Of country in which occur the
gold bearing rocks Of the Atlantic border OF the
United States appears to range lORgtudinally from
North. east to Northwest in general direction,
not far from N y degrees Z. Tnis direction is the
rtsnlt OF q grand number OF observations, taken 10
al the three States, and at points where the lorna
ton appears to be the most regular and determ
nate. IL also results from general observation
OF the relative position u the extreme points A.
which the central axis Of the Gold District has
been noticed. Taking Brookvlle, in Maryland
and tracing by Rockville TO the point OF crossing OF
the Potomac, below the Great Fails-exsending
thence across the Rapahannock 10 miles above
EreesLises'burg: thence. through Stafford, Eau
Iis in the State Of Virginia; through BucAngnan'
Guilford, Davidson, Rowan, CaoArras ana Nun
lenbureh Counties in North Carolina. by pro
longing the same axis North westerly, IL passes
through q part Of York County, 10 Penn
sylyins ia which Gold ia said to have been detect
ed and several hundred miles further to tne
North east Il stiihes the tour oil Somerset Ia yer,
mont, ia which according TO Proi HlscncocA' uod
va. also discovered, more that Lhlrty years ago.
Asthe result OF special observations on the strike
Of the slate beds in which the gold veins occurred
Injected between the plies OF sedImentary ROCKS,
! the fscs observed were buLd between Rockville
AID Brookyille, in Mary land where the bearing ~
n. 30 E-on the borders OF SPouylyanla ana
/ Orange Cos in Virgins N. 90 10 30 En- Mont
/ eomery Co North Carolina, at the hussel Nine, ~
| s2E-snd In huhehburgh Co AZ toe Smart Nine,
20 miles south eastward OF Charlotte, the stroke oil
! the beds being there n. 81 Z. These are a feT OF
/ the points noticed, and the rcs1lu are oo!smed
/ from numenu. observations taken al each point;
The sys.em Of meta phoric rocks 10 when the
/ gold bearing veins occur appears to pave under
zone different degrees Of charge IN the dlieren!
parts Of the tract. While 10 some parts the ofignn
slaty structure is preserved, in others the lanlna'
ton has been partly obliterated, aud the texture
! changed by the evident effect Of heat. la some
points to which observation has extended, there 70
evidently an informing ing o. rocks OF the taeh
sold character with such as shl retain INC s.y
structure. In certain parts Of the North OarolnA
gold region, he granite rocks prevail, ana shefe
! the aurfeFous veins have various directions epps.
reltly wholly irrespective Of the general trend o,
the gold formation. Thus between the Town OF
| Charlotte aId the CktaWba hlyer, and WITHIN
circuit about three or four nhes Ia diameter are
found veins which have been more or iess exssu
| sively WORKED, with directions running - sne %
E; n. A. h. N Fl w; n. 20! E.; and n ~ w e
80 that If hose directions were prolonged, tney
would in some cases be found interesting eacn
other at righ angles. Inregard to the matesiAso OF
veinstone il which the aurierous particles are
found, they offer very widely 10 some cases tue
material is 40 srgilla.Ure state, oil sliky ussef,
much interslersed with minute ca2es1 Pyiii'~ 49,.
iron or Of COPPER or Of both, as at the hasse mine
on the NeHbery, ia Montgomery 20 IN MOTT,
Carolina in other cases i. is partly IN qlaf1z am
partly in the aty walls OF toe veins; Aa1 IA O'nSfs
still i il wildly In the quartz bang 'csrcey a. III
impregnatedw with The precious metal
| The mater ale which exist IN ine VEINS ei'"e
such a, have been acted on by meteoric lniidsnoes
,rd nArtIy d,composed, or ly ing beyond the reach
Of ,ach Influences have escaped deconPoiHl2n'
and may be ngarded az the true opponents o. tne
deeper yeinsone These latter are IN genera
les. rich in gid than in the ormer, chiefly on &C
coun. Of hsyng lost a par: Of their solid ma era
by decomposition. Bat the deep ores owe then
Inferior valu, in 10 small degree also To tse DIN
Guilty OF extnctiDg the gold ron lt' como nas'Ol
with the sullhurets, which near the surface nave
been reducec by the combined action Of air wasel
and other Materials from the atmosphere.
Prof. WV. Is. ROGERS made some inseies'ln:
os.ervaiousat the end o. Prof Johnson remarks
He spoke Of he geological position Of the a1rlie'
Gus belt Of TIE country tracing correspondent e'
between thegeneral direction oil the BEDS ana sn'
cd met,morhic rocks with which they are asso
cia.,d. The quartz veins usually run parable
with the be OF the 10 AGENT strata though the!
, ! oec.sionsBy AXE an oonque direction Tney a.,
often single, but sometimes raniiy. de coas'c
cred il eviden thG; the great mass 0! these isneoa