New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1875-08-16

and Other OF niRhcr
other groups later times appeared at first 10 one OF its
sists largely in gradual deposition from Its high place
other and higher types little by little took its place
Of nature Eozoon however here brings under our no,
tcs another phase of creative law which Is coI9boracd
By other OF life in the succeeding peiiods Is
this New types do NOT Usually appear n thsr iowTss
fact that Foramniiera allied Eozoon, have continued
to xist since introduces us TO SUI anotber namely
that though species and individuals die any large group
introduced is permanent and may continue To
be represented for the remainder OF geological ine
PRIIORDIAL FAUNA.
But let MS leave for present this somewhat ncom
municative Eozoon and the few scattered forms OF the
Huronan and early life and go on further 10
the Primordh fsuna This is graphically presented TO
HI In sections 1t st. Davids in South Wales as de
scribed by Hicks Hero find nucleus of ancient
rocks supposed to DO Laurentian. though In mhef~
character nearly akin TO Huronian. bit which
have hitherto afforded no.trace OF fossils Resting uI
connrmably these series of partially altered rocks
regarded as Lower Cambrian, and also destitute of
organic remains. These have thickness OF almost 1000
feet they succeeded by 5000 feet of similar
rocks, still cassed Lower Cambrian but which have
afforded fossils The lowest bed which contains indca
tons Of life IL red shae. perhaps deep sea bed AMI
possibly Itself organic origin by that strange process
OF dissolution OF fosmnera ooze, de-
scrbcd by DR.. Wyville Thomson as occurring in
the South Pacific Tho species are two LfnJnteH@,
Dscina and Leperdiia Supposng these to bo all, 1t
IA remarkable that have no PrUfozoa or Cords or
Echinodcrrns, and that the types Of Brachicpods and
Crustacoans are OF comparatively modern atiinitoS
Passing upw nd through another 600 feet o. barren
sandstone, reach Is zone in which no less than hve
genera of TrilS,itoI found, along with Ptefopods
and sponge. Thus IL is that life in at the base OF
the Cambnan I'm Wales and 1t may he regarded ~ fair
specimen Of they appear in the earlier fos-
siiicrous beds succeeding tho Laurentian Taking the
first OK t+o groups Of fossils may recognize in tho
Lepcrda MI oSIaeOd CrIstacean closely allied to forms
still living in the and fresh waters The Lfng"e@
whether we regard them as inolllIscoids, or with
our colleague Prof Diorse, a. sinSnary spo-
cial!zrd worms represent peculiar and dis
tiut type, handed down, through all the victsituds
OF the geological ages to the Present day Had tho
Piiinordi life begun with species altogether inscrutabe
aud unsxampled IN succeeding ages this would no DOUBT
mysterious but next to this Ia the mystery OF
oldest of life being also among the newest one
great fact shines with the ccarness of MONDAY
whatever the origin OF these creatures thoy represent
families which have endured till in the struggle for
existence without eli elevation or degradation Here
again may formulate ant. her creative law In every
grcat group there sono form. nil moro capable o
long than others. IDl among the ifachi-
Bat whGn VIA Hicks, wo slrmount the Of barren
beds oycryils these remains. and which nom It's unf0S,
siliiorors CHARACTER 7, probably somewhat ralpm
time has ituol the rough filling pf our CONTINENTAL
formations. hayc suddenly sprsng upon us five genera
OF Trobtes, including the fo@estjonted and most
many 1Dutcd the smallest and the largest OF thelr race.
bcwI.acriaegt must Increase, TIL we rcc0Snno the c
Law of creation. which provides .hat every naw type
shall be Ihpidiy extended to the cxtsenc limits OF s
before consisring these laws however let as in I'M
a.nalon transfer ourselves back To tho irmotta age,
ana slpa~e ta We nave IN car hand living iu'nIa,
recently tabon from the Mapping ysorOls, Ito great
e. = and tc Of lie nid energy animal larger ana
heavier tian tho modern king crab Of shores, fur
nNicd with all tGs eOmpicxCy NJ external parts Tor
in.tinct ana focns and mode Of action pronounced
those Its moieFn allies AID II Woodwars views
IA is..g MIA
LINN i,r 9TH ,pois Wa have o,yoIsy here IN The
appearance OF tai, great cnstlcean repetition 9f Tue
which met WITH III Cocoon; but how vas: Ae
cal ruHk standing in inc presence of this testimony
sn.ton ot liza ,,IrsIoo Of these carry forms OF life
but in tracing the and their sgcccseors upward through
crr, ios ~ the Tvs Of th,ir succession. in possession
which Lay rttIu to attack the ingsSy VI tSar
ori-in.
Flrs Il must str+ke every observer that there is a
gtat 5ancncss pnn Throughout the whole history "a
marine Yertcbrate life. II over the pages OF
illustrated taNi-boos a geoioy, or examine te c'ote
drawers Of collection o' iessis, We SHALL lind extend
ns tifov-h cye'y SnccH"ng forinat-l iepresehlatVe
form, OF orliSiaceans, LolusE' c4as, orc, IN sucn
manner ~ to indicate thai IN each successive period
has been reproduction of the saqe type With
notifications and II The series Is rot coi1lhu2us this
appears to he due rather 10 abrupt physical changes
ot.r wa ind Gradual chang in foosil- ~ drop
psg out ana intrenctoh 81 species one by one Tins IN
Tho whole oi tho gIolt PaicOzpic Pcl)i, Doth III liza
Eauns and Flora We hav0 continuity aii. similarity oi
II = evident there presented 10 us IN this SINH
lnry o. the forms o{ successive fasn.s and hoi"
phenomunu1 which deserve very careful Sitting ~ u ho
comp iHLb h3 obtained ny careful sinGy ~
carnations. and oar - and u!tia!sed PaUOIVic |
ara.s America. Nicholson hs pointed out. seem TO
,+ difoosicI 81 constituting now species FOR oysY
gtly diycrscut fOiT bat IN striving - group these
,ron H. cso, the Orthids OF the type o. fes''dnorid
tbs Sirppononr 81 the types % >. Gtc4retl and )
rbymOO,Is the itrypr To typ, 81 l. Jetc,Roris
furnish c.l,,>, point tho Brachopod~. Their" i
nothing preclude tho suppostiOn iht s'mc Of these
Notifications. BY own provisional sDncuTon based U
Study Of PaeolOic plants is that Iii" general law VII
Do found TO DO TIC oA se'o" % GstA'i ep ne }pcn ~
d'Icnont Of each other bur liable IN seoogica time I"
s,s maF mo o, "i'' Ls'' exc" bee" rs
UNITY OF SUCCESSIVE FAME.
while this unity ~ Successive fauna at ffsi sight pre-
Appearance hereditary sucoessOu II i0oeS
much of this character wton corsids lie isnber OF
now typ,s introduced without apparent predecessors, the
necessity that thcro should bo similarity Of type in
ocive fauID any hypothesis OF continuous plan
and above ALL the fact that the recurrence OF representa-
tive species in large propor ion marks times OF
c0,tos rather than ii expansion IN the types 10 which
tLoy belong. 70 turn 10 another period. this IL very
manifest in that sngHlr resemblance which obtains be-
yeua tho modern mammals OF south America snd Aus
Eaa ami their immediate fossil IsedecesorS-tlie pho
nornenon boin. h,Se manifey that II docadence Of
L.. 20 and abundant species into few dcpaHpAuted
representatives TIL, viii I've found 20 "a very general
law, elevation DcinS accompanied ~ ne ABRUPT appear
auoo OF new ycs and decadnce ~ tic apparent cOt-
unuaton N ssl sYocios, OF qualifications OF them.
This rcsemblanc. with difference in successive fNnas
sl.o connect. Itself yxy directly wita tho SUCCESSIVE
oloystos and dore.ons al oar Continental patess IN
go0iJ, icGl e Every srsat pSeOz9lC limestone. for
example indicates deIscs,On with Intervening eieva
lion On each DEVIATION marine ANIMALS v1c driven
back tLe ocean. aud each depression swatmed in
The land. reinforced by species, sth@ thea in
tsoduced derived BY migration from other localities
liko in every dcpresoH landiAsnts and AMI
mas were drive. rM insuar aIcSs, aud retaeys-