RESULTS. 



15 



VI. Test op the Hypothesis. 



To test the hypothesis we must take up in order the matings of 

 various grades of skin color and consider their offspring. 



Table 8, — Bolh parents of class 0-9; gametes without factor for nepo N. 



Table 8a, — Mother's gametes probably without factor for N; father "paiies for white;" half 

 of his gametes may contain i factor for N. 



•Total blind. 



* Placed here partly becaase proportion of white in her fkin color formula la low (33 per cent) dmiIt 

 because of origin, and partly becanw of the sldn color of her progeny. ' ^^ ' 



