Palte IV 



Drosophila (continued) 



Fig. 74 First spermatocyte, anaphase. 



Fig. 75 First spermatocyte, metaphase. 



Fig. 76 First spermatocyte, anaphase. 



Figs. 77-79 Second spermatocyte, metaphase. 



Figs. 80-82 Obgonia, metaphase. 



Fig. 83 Chromosomes from embryonic cell. 



Fig. 84 Chromosomes from segmentation stage. 



Eristalis tenax 



Fig. 85 Chromosomes of follicle cell of the testis. 



Fig. 86 Spermatogonium, metaphase. 



Fig. 87 First spermatocyte, synizesis stage. 



Fig. 88 First spermatocyte, growth stage immediately following synizesis stage. 



Fig. 89 First spermatocyte, later growth stage. 



Fig. 90 First spermatocyte, early prophase. 



Fig. 91 First spermatocyte, late prophase. 



Figs. 92-95 First spermatocyte, metaphase. 



Figs. 96 and 97 First spermatocyte, anaphase. 



Figs. 98 and 99 Chromosomes of ovarian follicle cells, prophase and metaphase 



