INFLUENCE OF ENVIRONMENT ON SEX 



245 



TABLE 13 



Neuters transferred to neighborhood of females; fed. Specimen 365 to 370 fixed 

 after fourteen days; 371 and 372 after eighteen days 



development may come from an animal which is not yet an 

 adult female, but has its gonad in a very rudimentary or inactive 

 condition. 



So far all experiments to discover the presence of a stimu- 

 lating secretion have given only negative results. They wdll be 

 described here. The writer proposes to institute more critical 

 tests along the same Une. 



