88 



CHARLES V. MORRILL. 



son's ('056) figures show it occupying tin 1 centre of spindle in 

 both divisions. However, in the oorytes its position is variable 

 in the first division (Fig. I, e, //, and /; PI. I., a) but always 

 peripheral in the second (Fig. 2, a, c, d,f and g, h and i). 





* e 



/v 



/' 





s * * 



-M 



.-A" 



J 



FIG. 3. /Inaso tristis. a and 6, oogonial, c and d. spermatogoni.il nntaphase- 

 groups. e-j, first oocyte- (polar) division: e. /, g and /;. mctaphase-K""ij>>. in>lar 

 view. / and j, daughter groups from the same au.i|>lM-< spindle, IM.I.H view. 



