180 



ROSCOE R. HYDE 



the average was only 15 days in the cross while in the control it 

 was 25 days. It seems, not only from this, but from the other 

 evidence, that had she lived on the average ten days longer her 

 output would have been much greater than 118. The truncate 

 male on the other hand was able to fertilize on an average at least 

 245 eggs of the female of the Woods Hole stock. But this length 



TABLE 6 a 



Crosses between the loiv-producing truncate stock and the high-producing Woods 



Hole stock. 

 Truncate 9 X Woods Hole cf 



TABLE 6 b 



Reciprocal: Truncate cf'X Woods Hole 9 



