THE NUCLEI OF UROLEPTUS MOBILIS 



327 



with its chromatin collected in granules arranged about the 

 periphery (figs. 83 to 85), the other degenerates. The vesicular 

 phase of the former is preliminary to the formation of large, 



Figs. 74 and 75 Wandering pronuclei passing and after passing one another. 

 X 1500. 



poorly staining granules which fill the vesicular nucleus (figs. 

 86 and 87). As these granules are formed, the peripheral chro- 

 matin bodies disappear, their material evidently changing into 



