New-York tribune. [volume] (New York [N.Y.]) 1866-1924, 1873-03-29

These eggs whether OF vertebrate arhcuate nonss;
radate appear at some time or othei 20 pe been
able 10 detect any essential difference IN the ma
are all formed in an organ belonging 70 animas
ternal baing known as the Ovary. La some aii
This organ is very simple Whatever lts , 80
however, whether complex or smpie, tngno Inch eces
are formed from which new beings may &c !, must
But before the egg develops n." said thus far with ref
rence to absolute identity of egg structure 1
the animal kingdom refers Un aSes place There
organ in the male orgauism correspondents 10 tne
in The female organism which sperm cells are Iorsu
the caniact If the contents OF which win an 0sa,
egg is an indispensable condition ior .ne sHcS these
new being. There are no ann huo"" :" ~
corresponding organs do not exist ,o,, Ga based on
Reproduction In inc yegeanlJ, nns 70 one another
These two Conditions essential 10 the maintenance OF
types should be wen weighed ny any any, ono ""o "0'''
spnrooch the problem of the origin OF ne. .
Shaving Won the structure OF the egg proper
as exists in NIL animals before II taxes upon modrs
individual character, Will say wora On o'ne Won
of reprpduction in order that yOu may nave .o
the whole subject aud that may not pt Ills bnt
comparison the ovarian eggs ana ieIthng ce. t
be able To include budding ana seildi'sion Among 'He
reproductive processes
MULTIPLICATION BY DIVISION.
with radates especially among the hydroids, multi
plication by buds and by Subdivision rs common An
individual such as sketch the board hydroD, puts
out a bud from the main trunk This bud grows INTO
an individual similar to the parent and gives rise IN It's
turn to number of buds which 20 on multiplying ID tne
same way till large community ~ formed IN otner
Instances such buds may drop Off and become Tree, IN
dependent individuals. Sometimes again. new lndl-
yiduals arising IN this way differ from the parent
aud only IN their offspring reproduce BENG
resembling exactly the one from which they sIiang'
MANY hydroIds, and even of the higher acalepns
multiply by a still simple prOCeSs-that Oh seIl-
division The primitive stock breaks up transVerey ~
regular intervals by construction ana each sucn part,
when thrown of, becomes new INDIVIDUAL Wnne tne
parent remains unlmpaired IN its vitality. certain
worms also multiply III this way, dividing INTO parts
and each part building itself up into new ana perfect
being Instances also known OF longitudinal DIVISION
leading 10 result Not only Is II true tnat lhee
are other modes reproduction besides tIat Oh eggs
hui il is also fact that the antagonism between male
and female, ON which the whole process OF mu
tipcaton and increase among ANIMALS seems
duction of new individual. There are cases
in which the germ formed and passes through All tne
changes ti IL reaches the adult condition without Pe
ing fecundated at ALL We this discovery 10 Iepold
who followed the whole history OF the unfecunueu egg
I'm several species of moths, with an ingenuity ana per
severance which leave no possibility OF dOupt ~ W NE
results There also which eXOit an esse
difference in the product OF formulated egg ana OF one
which has not been formulated. Upon such dlnerence
rests for instance the whole economy OF the pee cOhu
nity All the eggs laid by the queen bee p0r 10 copuao
nrodnce males and these males are what are calico
drones The working bees uDdeyel0ped females, ana
are the product OF formulated eggs what IS called tne
oneen is the result Of special training OF one OF ntse
imp rect females. The workers choose one OF tnel
number and by peculiar treatment and mode OF 1eeu
ing, ETC., develop her into perfect queen Whose o
ace IL Is to multiply the community. There are aIso
some butterflies winch produce perfect male and female
individuals from non-fecundaled eSgs'