368 



GRACE MEDES 



at 72 (figs. 64 to 66) and 96 (figs. 67 to 69) ; c did not develop 

 past the 96 hour stage. 



Although all the specimens were of approximately the same 

 size at the age of 36 hours, an inhibition of development was 



Fig. 64 6a, 72 hrs. Control. 



Fig. 65 66, figure 66 6c, 72 hrs.; figure 67 6a, Control; figure 68 66, figure 69 

 6c, 96 hrs.; figure 70 66, 120 hrs. Same characters, becoming more pronounced 

 at the later periods and in the stronger solutions. 



