1 7 6 



E. W. SEYSTER. 



22, and allowed to complete their development at these tem- 

 peratures. One bottle was kept on the cold plate throughout the 

 period of development, and another was kept at 29. Removals 



TABLE XV. 



EXPERIMENT 14. OFFSPRING. PART OF DEVELOPMENT 29- 



-REST AT 15. 



Males. 



from 29 to a lower temperature were made as follows: Number 

 2, after one half day; number 3, when the larvae were about 

 one third grown (2-2^/2 days); number 4, just before pupation 



TABLE XVI. 



EXPERIMENT 15. OFFSPRING. PART OF DEVELOPMENT AT 29. REST AT 15. 



Males. 



Females. 



had started; number 5, after most of the larvae had transformed 

 into pupae. Number 6 was kept at 29. In experiment 18, 

 removals from room temperature (22) to 29 were made, and 



1 Average includes female with 650 facets. She may be heterozygous for bar. 



