140 



CARL R. MOORE 



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Fig. 2 Part of a section from a 130-day ovarian graft from male 51 E, showing 

 relative number of normal and atretic follicles, a, normal follicles; b, early atre- 

 tic follicles with large follicular cavities; c, medullary portion of ovary; d, e, f, 

 g, follicles late in atresia showing last traces of follicular cavities. 



Fig. 3 Primordial follicle in a 232-day ovarian graft from male 49 A. 



Fig. 4 Follicle with beginning follicular cavity (from same graft as fig. 3). 



