Fig. 280. 



Figs. 277, 278, 279, and 280. From sections of cat's ovary, showing ova and 

 follicles in different stages of development ; X 22 5 ' a > a -> a > a i Germinal spots ; b, b, b, b, 

 germinal vesicles ; c, c, c, c, ova ; </, </, d^ zonse pellucidae ; e, e, e, e, corona radiata ; 

 f y f, f, f y tbecse folliculorum ; g, beginning of formation of the cavity of the follicle. 



348 



