46 J. E. WODSEDALEK. 



PLATE IV. 



FIGS. 19-21. Freak types of primary spermatocytes in the metaphaae stage 

 showing most of the chromosomes in the equatorial plate and several scattered 

 about on the spindle or in the cytoplasm. 



FIG. 22. Primary spermatocyte showing an uncommon type of unequal division 

 in which five large chromosomes have passed over to one place while about thirty-six 

 remained in the original place. 



FIG. 23. A somewhat degenerate metaphase stage of primary spermatocyte 

 showing the expulsion of a bunch of chromosomes. 



FIG. 24. A late telophase of a trinucleated primary spermatocyte. The nu- 

 cleus on the outside of the cell wall was apparently formed from a group of chro- 

 mosomes which were expelled by the cell. 



