'5-1 



ROBERT CHAMBERS, JR. 



EXPERIMENT III. 



Experiment 111. confirms the results of Experiment I. LV 

 females were crossed with BfR males. The F 1 ' females, all of 

 which possess the gametic constitution, LVX-BfRX, (see Table 

 I.), instead of being allowed to breed with their F 1 brothers, 

 were mated with normal wild males possessing the gametic 

 constitution RLX-o. The results are shown in Table VI. 

 Although the cultures show a rather wide range of fluctuation it 

 is doubtful if any of these are significantly different from 32, 

 which is the value given by the total. 



TABLE VI. 



RESULTS OF EXPERIMENT III. 



LV9 X BfRc? 

 F 1 LR9 9 and LVcT c? 



LR9 of F 1 X pureLRcf 1 



EXPERIMENT IV. 



LY females were mated with BfGr males. The F 1 generation 

 consisted of LGr females and LY males. Interbreeding these 



