30 



EXPERIMENTS WITH DROSOPHILA AMPELOPHILA. 



TABLE 34. Percentage of abnormal offspring in 21 matings 

 ofA$ (ex. N$ X A?) X A? (ex. N$ X A?). 



FEMALES. 



TABLE 35. Percentage of abnormal offspring in 45 matings 

 ofA$ (ex. A$ X A$) X A$ (ex. As x A$). 



FEMALES. 



