PLATE 7 



EXPLANATION OF FIGURES 



55 to 58 Acridium granulatus. Ovarian follicle cells, continued. Sex 

 chromosomes 'woolly' (fig. 58) and loose in much decoloiized cells. 



59 to 64 Acridium incurvatus Hanc. 



59, 60 From wall of follicle of testis. 



61 to 64 First spermatocytes, late prophase. One small pair (no. 2) is stubby, 

 the other is long and slender. In figure 61 the no. Ix has been drawn out of its 

 normal position. In figure 63 nos. 4, 5, and 2 have been treated similarly, la- 

 is seen in end view in figure 63. 



65, 66 Acridium ornatus Harris. Prophase of first spermatocyte. 



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