136 CHARLES R. STOCKARD AND GEORGE N. PAPANICOLAOU 



their alcoholic careers, but there has been a decided difference 

 in the quality of their offspring during the two periods. 



Figures 4 and 5 show two female alcoholics photographed along 

 with the same black male No. 116. In figure 4 the alcoholic 

 is an albino, No. 65 9 . She was introduced into the experi- 

 ment with the second stock from a new source in March, 1912. 

 This female had been treated with alcohol fumes for two years, 

 seven months and se\'enteen days when photographed. During 

 the first two years of the treatment she inhaled one hour per day 

 for six days per week and during the remaining seven months 

 was treated for three hours per day, until fairly well intoxi- 

 cated each time. The normal male No. 116 was 4 years, 8| 



Fig. 2 The animal on the left is the same control individual, No. 150 cf. 

 The one on the right is an alcoholic male, No. 72, which was more than five years 

 M and had been treated with alcohol fumes for four years and two months. 



months old when photographed. The female No. 65 gave i or- 

 mal young before her treatment began, but now produces off- 

 spring with very poor records. 



The female No. 158 is shown on the left in figure 5. This 

 animal was produced in our colony from normal parentage and 

 was 4 years and 3 months old when photographed. She had 

 been treated for fourteen months one hour per day and for 

 three hours per day during the last seven months. She is a 

 large vigorous female. These photographs illustrate to some 

 extent the fact that the treated animals themselves are little 

 changed or injured so far as their normal appearance goes, and 

 should there be inferior qualities in their offspring these cannot 



