FOOD AND PARTHENOGENETIC REPRODUCTION. 



197 



Table II. 





ning of the 6 1st generation fifteen individuals from each race 

 were isolated as before and placed in separate watch glasses, — 

 one person doing all the isolating as in the preceding series. 

 No male-producing females appeared in this series of observations 

 and the number of young produced in a given length of time was 

 more nearly uniform throughout than was the case in the two 

 preceding observations. The average number of young produced 

 by the A race in the last three generations of this series of counts 

 was 2.66 in an average of 46.3 hours. In the B race for the 

 three generations an average of 3.68 daughter-females were 

 produced in the same period of time. 



Table III. 



At the 



beginning of the sixty-fifth generation, counts on the 



