26 



EXPERIMENTS WITH DROSOPHILA AMPELOPHILA. 



TABLE 26. Percentage of abnormal offspring in 6 matings of 

 N$ (ex. A$ X Ns) X M> (ex. At X AT?). 



FEMALES. 



TABLE 27. Percentage of abnormal offspring in 4 matings of 

 NS (ex. N$ X A$) X N<t (ex.N$ X A$). 



FEMALES 



