152 CM. CHILD. 



Plate III. 



Fig. 9. Second maturation spindle. 



Fig. 10. Second maturation spindle ; anaphase, a stage very rarely observed. 

 Fig. II. Reconstitution of female pronucleus ; male pronucleus on right. 

 Figs. 12, 13 and 14. Male and female pronucleus before first cleavage. 



