30 



EXPERIMENTS WITH DROSOPHILA AMPELOPHILA. 



Table 34. — Percentage of abnormal offspring in 21 matings 

 of As {ex. Ns X A?) X A<Z (ex. Ns X A$). 



FEMALES. 



Table 35. — Percentage of abnormal offspring in 45 matings 

 of As (ex. As X A$) X Az (ex. As X A?). 



FEMALES. 



