, 1873-06-22

| Y J \
SKULL OF D1SooEnAs 1nRABn1s-tA1A 1l4ls a}-*7oS1
The Dinocerata belong. in the lower part OF
the basin, and are probably OF about the same
age as the animals from the Paris baa.a de.
ssrbod by cuo Tho By bis Of
| science. Among other animals somewhat re-
lated to the rhinoceros and to the modern tapir,
| we're some species Of Limnohyus and 1elnaato-
! Lhe7-ium, but without the horns Of the rhino-
other animal about tho size Of the modern ta~
pir, and bearing pair OF horns upon It's nose,
| was Of the genus Colonoceras. One Of the most
interesting OF the small quadzupeds Was a
species Of 0ohPp h;nh P1ot Mash
has recently described. The animal was
scarcely larger than fo1, and ye$ re-
sembled tho modern horse in many
parts OF his skeleton, tho most marked dl1er.
ence being that, in place Of the single hoof OF
the modern horse, it had four wen-deyeloPed
toes in front. This discovery was especially m
| tereating, as it added = new link IN the gon-
eaology OF the horse to which reference is mado
| elsewhere in this letter.
| These huge pachyde1ms had their carnlTor~
| GUS enemies and with the remains OF the former
| there are many Of the latter discovered Some
species Of the Linsaofei nearly equaled the Lion
in size, and were not unlike that beast IN lts eon-
ArAl character. a Species oL Liz CfE4At"t "o0
related to tho hyena, though larger and more fero-
| oious. There rere also numerous small catnl.
yeres related to the foxes and civet~cats, and
many insectivorous mammals, whose 1000 coo
also a W g.xe 1o 20. a.ooys
cred the eoceno man, and do not az
| pect to; but his representative Wad
At least provided with full assortment of the
pests OF humanity. Fair equivalents OF our
mosquito, fea, and bedbug are amongst these
| nd ~
| than those Of the present day.
| Among mammals OF interest here discovered
by Prot. Marsh were narsupials. related to tho
| modern opossuna, bus mostly smaller, and the
sud three kinds of bats, also the first discovered
! in America. Parhaps the most interesting OF
the animals found By Prof. Harsh. were, how,
ever, the fossil monkeys, no truce Of which had
previously been ascertained on this contlnens, 1,
type. Although these differ widely from al
| known forms Of TINT group. their most impor,
| tant characters show that they should be placed
| with them. The genera Linnothsrtq,n, Thine
tie the principal parts of the skeleton much
as II somo Of tho Lnurs, the
correspondence in many Of tie larger bones
being very close. The anterior part Of the low
or jaws is s1nilar to that Of the Nar1nosets, out
the anglo IL more produced downward, and much
| infected. The teeth are more numerous than
in any known Quadrumana. This feature u
| precisely what q D2THlnlau Woulu e1Pect III tue
| case of monkeys from old deposit; Tor, ae
| Darwin has shown, the tendency in the higher
| apes, as we'll as in nm, is to shorten the ia"
and diminish the number Of teeth.
One Of the most remarkable features OF knls
basin WAS it's great number and variety OF rep,
! tiles. Turtles are especially numerous, ana
| many species, mostly OF fresh water typos. were
| discovered, some Of them OF huge s1zo. Croco~
dies were also very abundant, and hVo species
we're found, some OF them equal in sizo and very
similar to the recent alligator OF the Southern
| States. Land and Hatof Azhtos moAo A.o
WISE vel 1eP1eBen1eo' uos '1so s1"A ~ teo-oa
we're dlscoFefeu W eue t0 tIS*' ,.,.n.
OF these hzaros tesenotsu 4so w. .uo caHyarad
OF Central Ame1Ga, sone VI .uo Ue9a3,.n ~
VAIN pony P!ates nAo s1o ~ 7o,ch Isrear ia
Arizona, uos 1ao Haaa S af+ha oan1s Gbwtosnur,,s
as, 1or example, tlose " ~ go r 1anrth
some speclee OF Hnlcn we're o. - ssr,an+s Tnnnd
among the nume1ous ~ 90 ~ nao~,.. ~
m 19e oasns "eie setota - eon+h Am.yc.
lateq 70 11e ;5;oa9<I ~ ~. nam. th.t
ana t1ot nla1en las - !Isn;. .1aaators | Manv
tnls ~ pelnapa ono III - sn1l mIas wora also
smaller serPont'' ost!y yains mai - h;1ds rere
lepfesenteu;, !oH Ea te"o anaa;.s E;ahao we1a
found, mostly u a4uauu epooiea ha;n1 ra1stad ~
numerous, t~ naoss e soou o,a;doe;rs., md TIA
the m4ueln p4no \A'2P'<10|' @
nua-nsn tA"tuJ'
This whole lake with lts teemn9 Popu!al..ipn .in
must have been Wonaer!uIy nAe soIa1 ae ~ 40
great 1agoons OF tne t5oplcl - +nhch
at the present DAY. some OF tne oonee Will aa.c.,
| BlOWiV sank into It's OOZY D0LtOm WITS AohA