PLATE 10 
EXPLANATION OF FIGURES 
42 Five successive sections showing the entire germ nuclei of one egg. The 
male nucleus has five nucleoli, the female has thirteen. The line of apposition of 
the germ nuclei is seen in the third section. History: Centrifuged 7200 revolu- 
tions in thirty-six seconds, forty-four minutes after insemination. Preserved 
sixty-four minutes later. 
474 
