554 



of division here as well as in the early testis. No case of mitosis 



has ever been seen at this stage. 



Later, the ovarian syncytium becomes enclosed in a follicle in the 



same manner as described above for the testes. The ovarian follicles 



are elongated and tube- 

 like and open into the 

 oviduct. Figure 8 re- 

 presents three nuclei 

 dividing amitotically in 

 '~'^ a large follicle, and 

 Figure 9, a section 

 across a small follicle, 

 less advanced in deve- 

 lopment, though from 

 an older proglottid. At 

 these stages faint cell- 

 boundaries appear in 

 some cases though the 

 greater part of the 

 ovary is still in syn- 

 cytial condition. After 

 the formation of the 

 follicles occasional ca- 

 ses of mitosis appear 

 as in the testes. These 



are rare, however, usually only a few in a whole ovary, but rapid 



multiplication of the nuclei is still going on as is indicated by the 





V 



f 



b 

 Fig. 



/ 



r^^ 



.-b 



Fig. 8. 



Fig. 9. 



rapid increase in size of the ovary with increasing distance from the 

 scolex, as well as by the abundant amitosis. 



Figure 10 shows a part of an ovarian follicle in a somewhat later 



