44 J- E. WODSEDALEK. 



PLATE III. 



FIGS. 13-15. Late prophase of primary spermatocytes after the partial synapsis 

 had taken place. 



FIG. 13 shows forty chromosomes, about eleven of which appear to be bivalent. 



FIG. 14 shows thirty-eight chromosomes about thirteen of which are bivalent, 

 and Fig. 15 shows forty-three chromosomes about eight of which are bivalent 

 Note the heart-shaped accessory in each of these cells. 



FIG. 16. Polar view of a metaphase stage of a primary spermatocyte, showing 

 twenty-eight chromosomes in the plate, and seventeen including the accessory are 

 scattered in the cytoplasm. 



FIGS. 17 AND 1 8. Degenerating primary spermatocytes in the metaphase stage 

 showing many scattered chromosomes and the remains of the decayed cytoplasm 

 congregated about the plate or large clump of chromosomes. 



