PLATE 7 



EXPLANATION OF FIGURES 



98 and 99 Ovarian prophases showing three pairs of chromosomes. The 

 members are more or less fused. One of the pairs in each cell shows terminal 

 granules (?). 



100 Small pair showing each member split in unusual ovarian prophase. 



101 The three prophase pairs showing each member split, from same sec- 

 tion as figure 100. 



102 to 104 Ovarian mctaphases. Stage A. 

 105 and 106 Ovarian metaphases. Stage B. 

 107 to 111 Ovarian anaphases. 



112 to 119 Somatic mitoses from thoracic hypodermal cells of larvae. 



112 and 113 Prophases. 



114 and 115 Metaphases. Stage A. 



116 and 117 Metaphases. Stage B. 



118 and 119 Anaphases. 



576 



