The Memphis appeal. [volume] (Memphis, Tenn.) 1886-1890, 1886-09-22
ruE CAUSES OF EARTHQUAKES.


New York Herald: The recent catas
tTopheat harlestou has been the oc "a
Hio Il REQ oening the discussion of the
causes OF "a thquakes Some of the
scientific papers published within the
LAT fottoiglt contain some valueb'e
inf nm atom touching these pbenom-
enc, while in many quarters the thee.
Iiee advanced HAYS been wild and
fincfnl.
Perhaps the bsst exp1sition Of the
caueeH and characteristics OF earth
qraEei ia general, aud specially our
Atlantic seaboard earthquakes, any.
where to be- ionnd is embodied in the
adde's delivered by Sir William
ID .wso !, p esideht of the British AS
sociati N, on the night alter the
Oharlpeton dis 'ster This eminent
Cauadi,n SC fist, than whom no
living msn is better q ted to expound
the formal on and cHangfs OF the
earh'scust, gave the p obable history
OF the formation Of the Allsut oCeaa
and the conine Is which bouUdit. Az
su mig that ,he Carth's nue. eus or
mss is solid, Notwithstanding the
this subtrust IL net in n state If dry
igutous iusion, hut in that condition
Of sque ligneous or hydro thermic
fusio which arises f,om tie acton
of heat on moist subs ances, Prlf.
ID ,wson ara lad at the interior 81 :
C 'ust ia not homoge neous, but is COM
posed OF two lsIeis-an upper layer
Highly s'lceous and Of low spec tif
CAVITY and lower layer highly
g argtd with iron aud igdeous rocks.
is evi1rI {, reiore, nat If this he
tn d uble Structure OF the earlh's
under us, wGea fipu'es fo m in the
NJ per LAYER the mateua o. tle lover
c,us IS forced upward by he pressure
II 'he lees suppo ted pt rtions OF toe
jo,msr.
CAUSE Ole VOLCANIC ERUPTIoNs.
The, OF course, would give rise to
volc Wic phenomena. which would b.
exp olve or quiet, a. determined by
C ut,ct with waer. Toe conIac n
al tie tat1's ictero, by c o log end
b he eni.tion :, / mate rial from b,
law o ov.r ctu,t his caused tn 6
C ut {, b nd downward aud tidawise
thus form nv great euds, folds and
picatot These great fUliing', sub
sequ n y mod fled by surface deuu-
Catinr, constitute our mountain
rang 8 aud plstsaus.
THIS EARTH LIKE A rEACH DRYING UP,
Following tn slime o; ,easc ming Sr
Wi,li6m compares the Q nth 10 ttore
hu tuCh a plum ~ peach,
e"uewhW died up. at has," he
spy. "a la 20 aid intensely hard eione
81, k'nel, a thin pup in d. 10 oil
Nv layer, inner IN, re denBe aud
da K c,o'd, aud an on er lie = dense
end liRht,r Col3rpd Ihaae con tn &
tl" tut.r ems, On the IL .idp it rvs
. h II men b are OF over ,rdst In
thr pr cess # diving it has slightly
$ ruiz no ~ 10 produce ridges ~
h''l 'ws on tha outer crust, al d Ibis
"a et cru t ias ,r cked ia come D. ac $
out {"
A GREET FuCg ONCE ACTING en- ouI
ATLANrC sgAB ARD,
Another rem rkablef ct emphasiz {
by 81 william O,vson IA th or,
@ uh't lOOS ~ v geological naI o
America wltHout uelc wing ha th
A ns!aehian ridges, whica lnttrven,
etweel the Atlantic ani s. Law
race va. hey, have been iyen bodi +,
IA k ny sooe mighly rec acting
fonite east, aus ihai ihey iave ie
SIS ed t1e ira ure only whrr, (as /,
,tto Gu If S. Lawren 20 sud n,
Cat.till iegi Of Nsw York) tn,
slsvs been pIo ctrd by o,tlyin
,, assoc OF vrv old rookie rs leel II
"a 4 nda,k reg on al d in Nes
( undlard
Is w,Hhy a potc that hong
later 10 c,lUre d tiv liz ,tIon Il al
som Of tue other coltinen s, Anne q
CAR, ~ h view # ge,loyist "f .
Dom am n toe conlinsns." "heie,
8 io Agase "wa3 tie fist dry ian,
ii t d Out OF the weters, here the Il e