PLATE 3 
EXPLANATION OF FIGURES 
27 Copulation of the pronuclei, from serial sections, showing 13 chromosomes 
in each pronucleus B, C, and 13 in second polar body, A. 
28 Polar bodies from egg of similar stage; the first one has divided, and 
shows shadowy chromosome outlines. 
29 Ovary from a larva, longitudinal section. 16. 
30 Ovary from a pupa, fixed in January; total, x 16. 
31 Same, fixed in July; total, x 16. 
34 
