, 1876-04-03

-ths olags Of gran!to, several OF which, With
oshors, hid tho pleasure q oxamlnlp5 in
Aahmore Muaoum. Tho london Museum OF
Geology fn 81. Iermyn street, Aod the EAst~lnd
Company'a selection Of minerals from csylon
and elsewhere.
Without referring Al length 10 sltnlu sleve
mafllss, md Phillips, We ind the esninsnt Cor
man chemist and keologint, Gustav pischol,
after 4 life devoiod 10 earnost researches. clo-
gusntly eonlendtng, BY ILLUSTRATION and argn.
sho s1'; ;ohsn!csi /. aotioa Of s.llso solutions
and precipitation from solvent fluds, ~:
sia.ed " worry moderate degrees Of
temperature. called into exastonce, not
chemical action: His vary excellent work,
Lctrhueh dor Chom'eohan und riiystksllschen
0eologs,"ie IL mtno Of information to the In
qui!or.. Prof. T. Story llnnt, un1oubtediy ono
Of the Misunderstanding OF n!a captivating Pre-
.nti tho application of ii. I'oulott gerope'%, Biz
John HsrscheIs, mud N. sorby'n discoveries on
Tho ntcroecoTtu structuts Of crystals, sseafm
that buried shdfmcntary dtrath, under she oom,
bined soslon Of water and moderate heat, evolved
by the chemical operation. become hn'helehtly
plastic to loao tho dia!inctivo faatureA Of thoit
relimontary origin, and. IN tnstancee ~ az.
planoment through proseure> may Do iofosa
among tho nosghboring ntrasa, and assume ths
eruptivo, rocks. Ha boldly contends that q ts
impossible longer to question tue sadimsntary
and indigenous character Of many a. s11ni,ea
pubIislasd in The Annales des Mines, also
so'vout sedvsu 'p povos Of ilulds under electrl.
oal thorna! Influences, orlslnstng from
md similar yiavt A.yo for some time paa. been
entertained by Prot. James Hall. Biz ". u.
Logan, Losley, J. D, Unna, and Dawson. Tbs
transactions Of tho aoo!oetcal Branch Of tue
tho GormAu 6ctontiAo Associations, hayo s!ncs
1850 beon enriched by stntcn1ont after statement
from Tho most omiuont acicntists Of tho day, Of
tho results Of observations md experiments
upon tho aqueous formation Of granite. From
tLeBs Investigations II has hoen proven, stop by
stnp, that gfanlto has been found Of all sReS,
from tho so-callod primitive to tho pllocono |;
that nll ito constituents cxist in sedimonsary
rocks that Its crystals being mainly hydrons. 1t
iRneoun state; that volcanoes find thclr fnat,
not from o molten interior, hut by the dcoompo-
sition OF water TINT ratar plays tho most I'M
portant part IN Tic l!qu!dLty Of lava; that aotli.
water and haat, evolved from tic olectro-thcr-
nal p!Hsisy H'issfsS: @'' gb'sh &c tssa''a Ssy psS y
lose their sedl1entary characteristics. and by
rocks; TINT thu specific gravity Of granite proves
its aqlsona origin; tAat It has boon found to
contain black lead aud magnetic tton, which
would bo ch.nEcd 1t far 1css tlsut than that
uEECSHHTf " [Ad!k EEHuLl93 tAH% ~ NoAkHAp AOo~
stIs, and that vaternatks haye been found 10
its mics-
manufactured its constituents, Including Anhy.
drous fedspar, FROM the elements ot ssratiaod
rocks and water nuler pressure At temperature
far belo.o the J1tstng 1'oi "A tcst that has oaen
repeated With similar results by more than ono
inquirer sneo, inysoIf included.
It is not hIrhngo.. thorolore. That our most
eminent scientists. who are familiar With thoso
fants descrt their old tleor1os, md adopt tho IT.
rests:iblo conclusions thoY lcad to. sir Charles
Lyell, IN 1864, In addrcsstng tho british AsBoc-
otiop. nomposed Of the most enlightened Ba7aps
fu1aess OF oathedra. Prot. Austed. Ia address-
Ing the shnlo body In 1863, on tho "Uonvsr-
sion OF Btratllad Hooks Into Granito," said ::
| Gsolog.ats until rooently, hayo spoken Of
granite ~ 4 primitive rock, as tho nucleus
! timo esuosod, playing Al important part In the
general disturbances by which tho framework Of
| the Garth is supposed TO have been constructed.
Tho. c.obsoryationa OF Danbroe and LcrbY show
| that nil truo granite has boon elaborated with
| water under grsht prossure, at = Temperature
| below melting hent that It had uess,cr boon
ojocted, NOT bad II formed o framework. Thoru
are 5ranitos Of al asoa. and OF many kinds. Nu'
uAtea With and passea Into strntidod rock with
| which It is associstod. This view nt tho nature
| OF granite will grestly at1eet tho theories Of
geology" Aud ssr Tilllam Thompson. now tho
lQNQlnE EGLQQfl6t OK IEH4b IEleA4Hs IN pleSiQluH
oyar the Association IN 1871, H8sertod as the ra
suit Of tho lsbotious researches Of himself
and q number Of eminent eonfroros. that 4
motion condition OF tho oarh's interior was abso.
'ltfly impossible.
Those 1oferenccs could be greatly null
tiplisd, but / think haye .said enough
| to convince eyen \. y. Cooley thnt, In
attempting TO aoEnatosliy sontroysss ny pre-,
loarn some facts hbout zoology not hitherto
known to him. But, II ntiIl doubling, / will be
pleased. should he como my WAY, to show hin
! from ny own cabinet . TOW specimens Of fossil
| markpd ersnites. aud illustrate to him tho pro
ceas Of lii manufacture IN tho laboratory,
JAMEa CnEn1g.