96 



HELEN DEAN KING AND HENRY H. DONALDSON 



As compared with the albino standard, the data for the 

 captive Grays average 17 per cent higher for the testes and 

 101 per cent higher for the ovaries. 



A comparison of the data for the wild strain, table 207, 

 with those for the captive Grays indicates that these latter 

 run about 1 per cent higher in the male and 8 per cent higher 

 in the female. No significance is to be attached to these dif- 



%r 

 \j\ 



CL, 



GIO 



+80 



+60 



+40 



+20 



A 



Albino 5 tandqpds 



Chart 21 Percentage deviations in the weight of the gonads in captive Grays: 

 Ovaries: testes. Albino standards. 



ferences in themselves, but they serve to indicate that no 

 important modification has been made in the weights of the 

 gonads. Thus, from G 4 to G 10 the gonads remain as in the 

 wild strain and, therefore, show no tendency to assume the 

 albino values which run much lower in both sexes. Neverthe- 

 less, while there is no evidence for the influence of the un- 

 favorable conditions on the weight of the testes, there is 

 perhaps some evidence at G 5 , G 6 , and G 7 for a depression in 

 the weight of the ovaries. 



