FERTILITY AND STERILITY IN DROSOPHILA 



151 



TABLE 13 d 

 Inbred 9 No. 149 X Woods Hole cf ; reciprocal of 13 a 



Sterile 



Reciprocal : Crosses between the inbred 9 and the Woods Hole cf 



TABLE 13 e 

 Inbred 9 No. 172 X Woods Hole d' ', reciprocal of 13 b 



* Sterile 



