FERTILITY AND STERILITY IN DROSOPHILA 



155 



TABLE 15 b 



hihred cf No. 31 X truncate 9 No. 35; reciprocal 15 a 



TABLE 16 a 



Crosses between Woods Hole stock and truncate stock showing behavior of sterility in 

 Fl and F2 generations. Woods Hole 9 X truncate cf 



Pairs chosen at random from the above crosses. 



