256 H. M. KINGERY. 



PLATE III. 



FIG. 9. Egg-cell containing four nuclei; these, from their size, have been 

 formed by the coalescence of a number of smaller vesicles. Two extra-ovular 

 cells (p) are shown. X 670. 



FIG. 10. Oocyte divided into two more or less equal parts, with polar body also 

 present (pb). The nuclei are not alike, one being apparently only a hollow vesicle. 

 X 670. 



FIG. ii. Egg-cell in several fragments, one of which contains five nuclei. The 

 zona pellucida is broken in two places and extra-ovular cells are present between 

 the fragments. X 670. 



FIG. 12. "Morula" stage, some fragments with nuclei and others without. 

 X 670. 



