HELEN DEAN KING AND HENRY H. DONALDSON 



sents male albino values, then the values for the male captive 

 Grays, graph 1, run from 10 to 20 per cent minus, while the 

 values for the female captive Grays (3) run about 5 to 10 

 per cent plus. When, however, the base line in chart is taken 

 as representing the standard values for the female Albino, 

 then the values for the female captive Grays run from 50 to 

 60 per cent low (graph 2, chart 17). 



If the sag which occurs in the graphs at G 6 and G 7 is 

 neglected, the graphs give no evidence for a progressive 

 change in the weight of the hypophysis in the later genera- 

 tions. Nevertheless, at G 9 there is, in both sexes, a conspicu- 

 ously high value that is noteworthy and may be significant. 



TABLE 15 



Weights of bulbs and of paraflocculi together with their respective percentage 

 weights on the entire brain. (Chart 14, A and B) 



Males 



Females 



