PLATE 4 
EXPLANATION OF FIGURES 
111 from testis no. 282, the others from testis no. 265. All the figures from 
follicle 6 except the following: 98 and 100 from follicle 4; 95-97, 110 from follicle 5. 
94 Metaphase of first maturation. 
95-100 Anaphases of first maturation, fig. 98 being a polar view of a daughter 
chromosomal plate. 
101 Polar view of metaphase of second maturation. 
102-104 Lateral views of second maturation spindles. 
105-106 Polar views of daughter chromosomal plates of the second maturation 
spindle. 
107-111 Lateral views of later second maturation spindles. 
112 An entire spermatid (on the right) nearly completely separated from its 
sister (shown in part outline on the left). 
113-116 Earliest stages in the histogenesis of the sperm. 
S11 
