132 H. H. NEWMAN. 



PLATE II. 



FIGS. 26 (a and b) represent two sections through the germinal vesicle of an ovo- 

 cyte in a follicle like Fig. 9. ( Xi,6oo). 



FIGS. 27 (a and b) show two sections through the germinal vesicle of an ovocyte 

 in a follicle like Fig. 9 ( Xi,6oo). Note the first indications of spindle fibers. 



FIGS. 28 (a and b) show two sections through a germinal vesicle of an ovocyte 

 like that represented in Fig. n. Note that considerable progress has been made in 

 the establishment of the first polar spindle and that the bivalent chromosomes are 

 of very unequal size and form, some having a distinct tetrad form ( Xi,6oo). 



