274 'Journal of Comparative Neurology and Psychology. 



tion. In several cases, eggs followed after one second; in »a few 

 cases not for fifty seconds; usually, however, in from six to twelve 

 seconds. The time-rate of egg-placing was no greater and no 

 more irregular than that in normal insects, as the following exam- 

 ples will show (figures indicate time, in seconds, between the plac- 

 ing of eggs). 



A — 14, 8, 8, 12, 12, 8, 8, 12, 16, 10, 7, 6, 9, 8, 6, 8, 12, 7, 9, 8. Av., i per 9 sec. 

 B— 6, 12, 6, 12, 17, 5, 14, 15, 12, 7, 6, 9, 1 1, 4, 9, 9, 9, 39, 14, 6. Av., I per 1 1 sec. 

 C— 14, 6, 7, 5, 5, 8, 7, 5, 6, 5, 5, 6, 5, 7, 6, 18, 14, 5, 5, 6. Av., i per 7 sec. 



Series 10. Moths not mated, decapitated and stimulated. 

 TABLE III. 



TABLE m— Continued. 



