PLATE 3 
EXPLANATION OF FIGURES 
Successive stages of first spermatocytes, figs. 74, 75, 82, 83 from testis, no. 
286; 86-93 from testis no. 265; the remaining figures from testis no. 282. Figs. 
74-83, 86-89, 91-93 from follicle 6, the remaining from follicle 4. 
69-86 Later prophases of the first maturation spindle. 
87-93 First maturation spindle. 
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