CONTROL OF SEX BY FOOD IN ROTIFERS 



291 



TABLE 6— Continued 



Diagram 7 Brachionus pala. Experiments 1 to 9 of table 6. Showing the 

 production of a high percentage of male-producing females when the food of pure 

 cultures of Chlamydomonas was made superabundant by the additions of bouil- 

 lon. B indicates the addition of bouillon. 



