The New York herald., 1867-02-21

J SHEET.
Anniss which snbnes the slspha.t ne rhlnoe1fsA
- hppopotamus and the like which are cnsrec rissd
~ the thickness Of their skins und py tnr6 heavy
nse and are no.n by ths name ne o. ,s
~. iss.. iarEsf KINDS q via hOg-.As =
already. man, on the other hand, seuth America
has family almost exclusively 70 itself Of low quadru
peds which have hardly representative IN any other
Quadxupeds rsmsx kable for the npsnection u their
dentstioa These have NO mont teeth ana tnsy naye
sss sss sps sn :: any f.s
the ant and che satooa The armadloss are of
this kind Now there only ono or two species Of hs
South AusEica they arc very numerous Not only srs
they numerous at the present time but they vsrs
u ages and Large them
colossal Dimensions You may have heard Of the curl
GUS animal discovered by Jefferson in the southern
among shs he fossils found m in the Southern states
which correspond somewhat 70 the soth by the sfruc
urs q the fingers b.. which was an aosoa sos S
the bones of which have been found in Kentucky and
Georgia. and quite number OF them have been found IN
tied by gigantic sloths ant eaters and armadoes dur
ing period immediately preceding oars and when, at
already attained ed superior standing. We see by ali
these that series OF animals live which characterize
South Amenca and which really interior stamp
compared with those Of other parts Of the world II 10
curious fact that the carnverous animals which occupy
the highest position in America Of inferior stamp
Instead OF bears have In the northern continent and
everywhere else this continent the badger small
kind Of bear, and the large carniverous
animals s, rsr r., only y the panther and the
sh relative position between the continent far as
the animal population Is concerned just in each
tncn we may establish standard between the different
animals they occupy higher lower condition in
accordance with the place IN which they live This fact
when We examine their mode Of growth their formation
In the egg and TO the time when they complete their
growth, and their close relation 10 another taat
the idea OF seems perfectly natural That
you may the relation that each bears EACH will
proceed to show how great the resemblance is during
certain periods Of the growth OF these the
egg will proceed to show you that all vertebras
whether fish, reptiles, and not excluding man, have
one and the same origna arise from the eggs In the
infancy of the eggwhen it is formngt requires the
highest power Of the microscope to detect it. The egg
until II grows large appears to be dot after which II
greater dimensions 1t contains condensed mat
Ter. These present indications Of condensation.
us'Hne TS Go On = chart rb That would a. be a perfect
plee in its FORM is small that the human eye
See IL but with the microscope presents large scope
which Is identical with tho young egg OF a hen when
forming. The egg Of the bear does differ, that
OF the REPTILE from that Of the fish, the principal differ
being the size and substance, one having shell
for protection That which constitutes the egg ~ the
yek The principle is not the shell or the white OF the
egg but the yolk which grows until it finally becomes
oucetssA~S
and at length it becomes bulky mass Of
yok, around which is formed the shell In this egg
in Same manner The formation Of the young begins
In this way begins the surface OF the yok, which
becomes ndented, the assures growing deeper and
numerous until the whole surface becomes Kneaded
ana cut into small pieces and these pieces
ap again and again In the reptile about onehaf
wolves the surface while in the mammaa the whole egg
cut up until 1t reduced to the minute PARTICLES
That is the basis from which the young developed
and the first step which takes place after the formation
n and fha mar
ticles reduced 70 the minimum dimensions, furrow
growing deeper and deeper until sort Of rdgs rises.
Of the bat, the young Of the bear the young Of the
turtle do not differ from the other, except per-
nap .rp u % OF ss ~ ooof o. Tsef. .
illustrated chartl have opened those Of eggs with
view Of examining their formation, and always found
egg along the diameter, the furrow becoming deeper
and broader AZ one side. That side which ID broader
and deeper Is to Be- one day the head and thai SIDE
Of tho young. Yet there s no nesh, no
skin or animal substance but almost transparent sub
stance somewhat like jelly, with certain whteness
about It which is very peculiar and degree Of softneas
which makes manipulation exceedingly difficult. II
opened s under water, @ ana the water must Ss Of
the same temperature under which the eggs are
GROWING Iss must % opened 20 that the parts
be taken and placed close under the mscroecope for
examination when you will nd that the whole or this
without any apparent difference yet in substance. Sup
pose that edfce OF considerable dimensions 10
be put up made Of Of one mass % o. clay and that & BY
itself, and that here and there IL became
harder, and here and there became sofser, here
these holl0ws should accumulate fluids and In tho
other bres and all should grow up by themselves
stones beams Of all kinds. with tubes and Canals
gas pipes and everything else and that all should grow
q Itself you would have something similar Q that
ana all rising from eggs OF the identical character