244 



HARLEY N, GOULD 



TABLE 12 



Neuters transferred to neighborhood of large females; starved. Specimen 357 to 362 

 fixed after fourteen days; 363 and 364 after eighteen days 



ing would not cause degeneration of male organs if large females 

 were near them in the hermit shell. 



Stimulating secretion? 



Several experiments have been made to determine whether the 

 females or any of the large Crepidulas are constantly giving off a 

 substance into the sea water, which may be taken up by the 

 smaller individuals and passing to the sex glands, affect their 

 development. We may already discount the possibility of an 

 ovarian secretion; for it has been seen that the stimulus to male 



