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STOCKARD— CONTROL OF DEVELOPMENT. [April 19, 



as epileptic-like seizures, and all died in convulsions. Only two 

 litters consisted of normal offspring and these young, five in all, seem 

 healthy though unusually small. It is thus seen that in 24 matings 

 of normal females with alcoholic males only two gave normal results. 

 Whereas in the control animals all matings have resulted in the pro- 

 duction of normal oft'spring. 



Only two matings were made between normal males and alco- 

 holic females. One of these gave no result or was possibly aborted 

 very early and lost, while the other mating produced one female off- 

 spring that lived to become pregnant by an alcoholic male. This 

 last mentioned female was killed by accident, two embryos were 

 found in ntcro one of which was deformed. 



Fourteen matings were made between alcoholic males and 

 females. Ten gave no result or aborted very early and were eaten, 

 while four cases showed the following records. One young was 

 born weak and died in convulsions on the sixth day after birth. 

 Two cases of premature births of dead young. One female had 

 young in utero when killed. 



TABLE IL 

 Successive Matings of Ten Females. 



