New-York daily tribune., 1856-08-27

s,,s ~, y,or,ly ro.iced .'so seems to prove the
aqueous nature Of the ongin ,h % ,hnse in
Pieces Of fcsure from r. gland corresp.no % " NOT I'M
which thcse fos.ils are fOud Shells % tVo e' f csnne
6oouetly found IN the middle Of s'th,u 'th. ~ b'' Wr
Among The te Die Imairs found VI 's of Tree.
Ncwbcry SrgrorG roc's ocsa%es "i ROOFS 80 char.c
tho und,r csss Of the al seams ahu . ne =
Strna of oloinary b umin ons cooi ,i,,s, b;,nnen
laycrs Of greater Oi lees 'bc W -; th; IL, o,, -,
h.x,c CON chodsl froc'ure, ALTERNATING mn "5 es "a
osNDs ,.ei,v csrnel sometimes cont aiming 20 mu'h
sh, ms,r rs TO become bd'ninou' Shaei az um =
.p' eycrs Of camel are oi consdersoe tn HheSs,
M ,y an mpor,au part OF the stratum ms ar
a,t ouu is attributed to the variable quantity os
,s covering the coal marshes-the cinnclHko
-, heipg deposited during the prevalence ot higher
ter wi en- the fshy remains could naturally nave Oe'
co,ne portion Of the stratum
Mr.. T.. & liUST IeAd paper upon some l.uphotldc'
and other felospathic rocks. The name OF Eaphotdc
was applied to cert,n rock masses OF the Aps andoi
Ccrsics which Were composed OF an aggregate
of a fc>6sge hiC nlOeTai, more or leSS conpa'',
to which the of Saussari,e WAS given ana some
variety Of ouze hornbende, whose different nature
has caused ae rock to be cesgna'ed as hypersthene,
gabbro graBitoDe aud Eupbode by different autn0'e'
The reeu of the AUTHORS studies Of the socaled La
bradciiie rocks tf the LaureLuap System snow that
these altered seumertary deposifs consist essen-
italy Of hme-feloiparr Of the hicllnic system
holoirg small and variable amounts OF ny,
perstheyc or of pyroxene The feldspars vary
comrositiop WELDING sometimes the formula OF al
besive, and Oih,rs that Of Lsbradonte. Sometimes
thew
and almost nnpslps abb, resembling sauparte, and con-
stitutpg with tbeir int miDged pyroxene Veritaols
Eppl CtideS which paSs by imperaeptble degeos, ino
The grained Lsbrodcrte rocks with when they
are chemically ard mcG4 okically Identical ln
support c these conclusions series Of specimens and
a Lumber Of al al ysis were 1bbited. The altered
lower s anan strata of the Green Mountains pre-
sent in close association with tue serpenlue-,
,eries of fuc grsiaed fields spathne rocks somstn mes
CRYSTALLINE at other times almost lnpIpaDe,
which are founded on careful examination 10
f.lrc hat IN fhp
csse Of the epecim rs exhibited the composition of
oIbte associsted with anhj drous sllicaie OF hme
msa ess and oxide OF iron, having all tue charace ers
of born bende. These rocks have density OF aoou-
a75 and form a &c INT, rstraied masses in the vcin
ity OF the serptntipe they according to the a-
thor vcitable Euphades. Other feldspathic rocks III
the same series have the character OF peosilex ana
appear TO be referable to tie gnrlte Of diaey. Inc
sntcimens cxbibiteo were Of Ough chety, subt-ans
hcent greeDish-wbite rock, having density OF ABOUT
264 The re cults Of it's anal ys showed that It s to be
regarded probably an intimate mixture OF quartz
with a feds oar having the formula OF abfe. The sei
in e1alv origin of these deposits is updOubted, and
the conrideIa ion Of their metamophsm senis many
points of great interest
Another paper by Mr.. Hunt was upon the serpent
ines ana some Of their sociated rocks In this paper
was considered the nature Of the Serpentnes OF the
Green Mountains in Canaca. The researches of SlT
Wm. LOGAN have fully established the statlgraphlcai
position of the Serpenine as belonging TO that portion
of the Hudson River group whica contsin the sparry
ImestOnes OF Eaton. The Serpentlnes are sometimes
homogeneous and hydrated silicates OF nagnesia
and protcxide Of iron, without any admXture OF
carbonate, but frequently they assume the form of
cor CLONE rates in which Iounoed or angular masses
of Serpentipe are imbedded IN a paste, w1lcn
is carbonate Of lime, magnesia and IRON,
constituting a ferruginOps dOlOmlte, at other times
nearly pCre cal ste of lime. DlGllage IS often
intesmiogtd with the serpeptine, or constitutes
rock by rsef The ssme series OF rocks PreseL's
creat beds Of silcious dolomite containing much car
Donate Of iron; at other times, the lime is wanting;
and we have m.gnesite rock, which Is soneti fes
mingled with large amount OF nearly pure snctou5
matter to which the carbonate series Is cement Al
other times the elicOus nixtuIe Is mixture OF tflc
with silicsteresem1ling feldspar in c0mposltion
Small portions Of oxide Of chrome and OF nickel are
always found IN these magnesl'es end these Two neas
are nleo frequently found associated with the ser
pentines TO. only Of Canaca, but of other regions
Associated with the serpentihcs ead sometimes inter
mingled is white massive rock, b6ylng density
of about $50, and being sllcate OF aiumlna
and lime, having the composition of a hme
garnet kOtbCr specmens, having density OF 330 10
40 appear 10 be uu ate mixtures of garnet with o.
white pyroxere. Tt alumineus siieae in come OF
fhese rccks may possibly be rtlated TO idocrase o.
epdote This remarkable variety of rock is evidently
derived from the alteration of an arglllaceous line
stone, which has but its oaroobc acld, by process
Yreosely similar to that by which serpsntnes, tales
ard chorites NAV be formed from sicious aud ar5lla
magnestes, while the similar doomites give rise
TO alarges and ssbeslus, and hornblende rocks AZ
a general fact it may be said tnat the original sed-
imeuts contain all the ingredients necessary to
yield the Cifft rent species which are brought out
by subsc Iueut motamophsm-a proposition Of
the highes. Importance for the correct understand
ing Of She iheoy OF the metamorphc rocks.
In the debate wr;ch followed the paper, remarks
copfrmstoy of the position of Mr. Hunt were made MAD
by Prot. HITCHCOCK, dr. j. ID. Whitney, Sr VII
LIAM LoCAs, ana Prof ENmoss.
MATHEMATICS AND PHYSICS.
Aner the reading Of the minutes Prof ALEXANDER
was called 10 the chair shd Prot. W. H. ROGERS read
bis psper upon Ozone Observations. ReSrettnS how
little he bad 20 ofeI that conclusive, he said hs
IN cfTa aipvt he been
remarks from DIR. SmallwoOd who had been one oi
the most inofsgable aad successful observers on ths
Continent. II was kno Sn TO the section that Scnoa
ben had mary years ago discovered an aSehl
of great energy the atmosphere, wach he
called from it, o:ssgeeabe smell, ozole, materal and
ponderate. 1t las Ssen considered as peroxide ol
bydroeeD aud also as an all trepic form of oxygen.
But Wha, is TN aloTopic form Is 1t no. physically
AMI netspbysica'y q rev substancel How can we
define matter or an elementary substance ozone
had been nteIe sting IN peculiar degree, from It's
being an ingredient tie atnopLore affecting us q,
eyeiy bre atl Prof r. hsd been making observations
by Sch0nbeiLs test papers, called ozonometcs. some
months observation at Boston indicated That wesery
winds contained most Ozone but in subsequent oose,
vatoos on an inland hil be found that ~lnos IN all
directions gave similar amo1nts OF Czone, Whue GAINS
from brt giDg less air on the paper, gave smsil
smcuLts He intended to mske an instrument 10
peatnre the amounts OF air passing over the TEST
paper and make further observations
Several qaestiCrs were put TO Prof Rogers, whlcl 4
ected the fact that he cou1 find no effect of ght an
heat He thought that IN cities ozone was neotrazea
by organic alters in the air.
Prof IoRsFoRD tbought there were AZ least two
atmosphsric sgenfs both called ozone. tie had made
ard used for ozone observations an ins,rum-n to
measure the amounts Of air p4Ssng over the test pa
pers and reported 10 the A-sOcato1 seven yeats ago.
Dr. Reed Of London had Obtained eDdless indications
Of ozone in tina, city. He Of opinion that there
may be many agents the atmosphere that may affect
ozonc observGois, even give indications OF ozone
A member from Portsmouth, Virginia. gave brief
account OF his obsorva ions last Summer aud the pre-
gent, ozone in thst neghborhoOd. The ozone last
Summer was deficient and this SGmner has been abun-