174 D ' H> WENRICH. 



PLATE IV. 



FIGS. 27-36. From prepared slides. X 1,100. Figs. 27-31, stages in mi- 

 tosis of nucleus of pelhicida. Figs. 32-35, stages in amitosis of nucleus of 

 pellucida. Fig. 36, daughter cell with only two flagella. 



