26 



EXPERIMENTS WITH DROSOPHILA AMPELOPHILA. 



Table 26.— Percentage of abnormal offspring in 6 matings of 

 NS (ex. At X Ni) X M {ex. A$ X N9). 



FEMALES. 



Table 27.— Percentage of abnormal offspring in U matings of 

 Ns (ex. Ns X Ai) X iV? (ex.Ns X A$). 



FEMALES 



