PLATE 3 



STUDIES ON GERM CELLS 



ROBERT W. HEGXER 



C M p 



c R 



P.g.c 



EXPLAXATIOX OF FIGURKS 



Midstor iiiNcricdnd Felt 



31 Longitudinal section through an egg containing two cleavage nuclei (c.n) 

 and a dividing polar body (p.b). 



32 Longitudinal section through an egg with a single primordial germ cell 

 i'P-g.c), several nuclei undergoing the chromatin-diminution process, and several 

 clumps of cast-out chromatin (cR). 



502 



