96 



NUCLEAR DIVISION IN PROTOZOA 







■.-tj'^,1 . 



^■7^ 



S'»jr,i??i?'ri 



^^HJ^infiV; 





•^^o:,:;^^ '^ 







'^05^^" 6 





v-'V^J'';:./- '//"^!-.> 



■^ .it* iis!^^ii'l/4' 



%vV/^ 7 



••'/'/, 







Fig. 54. — First Eeduction Division of the Nucleus of One of the Two 

 Oametes in the Secondary Cyst of Actinosjyhcerium eichhorni ( x ca. 1,200). 

 (After E. Hertwig, 1898.) 



[For descriplion see opposite page. 



