^"0.645] ALCOHOL AND WHITE RATS 303 



the treatment produced more litters than the controls. 

 The number of litters is strongly reduced when the pa- 

 rents themselves are treated, but when the alcohol is more 

 remote, the reduction vanishes and the untreated descend- 

 ants of the treated rats produce more litters than their 

 controls. To explain the reduction in the number of lit- 



