^^. 



L 



) 111 (:. 



roce 



ss live 



ki 



er. 



^Pment 





5 



"fo 



^ethe 



y 



/, 



■ ,0 





, (Cok) 



M.Poucktfe 



s of Pi^W*' 



ed to a pro»^ ' 

 perms than ow 

 d already .-■ 



■kers by * 

 ■ but 3^1 



T//£ BEGINNINGS OF LIFE. 



295 



though he has occasionally seen large bodies of this kind 

 existing singly within representatives of the genus Kol- 

 podaj and also in specimens of Kerona. He says^: 

 <I have observed this in Kolpodas, which, judging from 

 their great size, appeared to have arrived at their last 

 stages of life/ He states, moreover, that two or three 

 times he saw such 'Kolpodas with their bodies half 



r 



opened, though still having the egg in the midst of 



the disorganized structure/ 



In animals about 



// 



'B'o'tr 



m 



length the germ varied in size from xfW ^^ tttw 



// 



Fig. 68. 

 Development of Embryos in dying Kerona, (Pouchet.) 



It was altogether an unmistakeable sort of body, situated 

 near the middle of the animal, and made up of a dense 

 aggregation of fine granules bounded by a transparent 

 vitelline membrane or z^ona pelluclda. It was also en- 

 tirely free within the substance of the organism — in 

 which no trace of an ovarium was to be discovered. 

 In exceptional cases M. Pouchet has seen two other 

 smaller though otherwise similar bodies, adjoining the 

 rnore fully developed ovum. He has never, however, 

 seen more than three within any single animal, and has 



^ * H^t^rogenie/ p. 400. 



