UPnOH < HI A i. 1-HODUCT8. '' 



Fig. 5.- Egg from a Rabbit's follicle which was 2 mm. in diameter, after WALDEYER. It i* 

 surrounded by tin- /.<>n:i ]H'lliu-id.i ;./', on which there rest at une pl.t 11 (/.r). 



The yolk OOOtldxiS <10at0plMmifl fXUUlte (4). I" the Kermin.itivi- v-Mcl..- ( v. '/; t) ; . 

 nrtu.'ik i .> in.ii kid. and u tains a large germinative dot (*.O- 



appear- radially striate. -inc.- i| '-.MM! by numerous poro- 



ranals, into wliich, as IODL' as the egg remains in t In- < IKAAI IAN t'cllu-lr. 

 \n\ tine projections of the follicular cell> (/'.:) j't-n.-trato. These 

 tu>f \sitli the egg-plasm, and are probably concerned in the nutrition 

 and growth of the contents of the egg. (II FT/ 



The human ovum is wondrri'idlv lik<- tin- r^ ,.t' .Mamiuals in size, 

 in the condition of its cont< nts. and tin- nature of its int-ml'iam s. 

 Howevi r, it always can l><- distUDgniahed I'y ii 1. though 



tritlin^r, charac-ttri>tics, as the careful inv.stiirati. have 



shown. \Vlu-reas in the llahltit lu>t i< n:s. fat -like spin-nil* s r nd r 

 the yolk cloud v, the human ovum retains its t ran>!>an n<-v during 

 all stages of development, so tliat one ni: riise mo*:t 



curately all it* >t ructural details. e\.n on the lixini: ohj.i-t. The 

 yolk is dividt d into t \\ o lay. i >. The /',/,, . iitain> pi inci pally 



deutoplasm, which products in this ca> , v to most of the 



Mammals, only a slight i-loudin ; it , ,f f.-.-l.ly 



lustrous, in part of highly r fractixe fn.^mi nt>, some coarser, some 

 liner; but it is not possible to recognise tl.e mutual boumlaiits of 



