16 HEREDITY OF SKIX COLOR IN NEGRO-WHITE CROSSES. 



Table io. — Father without factor for negro N; mother with 2 factors for negro N. 



Reference 

 No. 



Parents. 



F. 



B. 13, III 5 * 



B. 16. II 5 =*= 



B. 2S, II 6 



J. 8, II Pass w 



J. II, II Pass w 



J. 18. II 8 



J. 23, II Pass w 



J. 16. II '3 



J. 19, II 3 



J. 19, II 8 



J. 48. II 2 



J. SI. Ill Pass w 



Total. . . , 

 Expectation . . 



M. 



27 

 31 

 35 

 25 

 27 

 30 

 38 

 36 

 25 

 25 

 25 



25 + 



Offspring. 



O-II 12-25 26-40 4I-S5 



II 

 16 



I 

 I 



4 



2 



3 



I 

 2 

 6 

 I 

 5 

 6 



32 

 32 



21 

 16 



[I] 

 o 



S6-78 



Remarks. 



+ 1 ch., I yr., N so. 



Dark child, illegitimate. 



Table ii. — Father without factor for negro N; mother with 3 factors for negro N. 



" N 43. 



I- II 8, cJ*. skin color 53. 32, 7, 8; II li 9 , skin 45. 32. 10, 13. 



• Including i N 25 per cent. 

 <* Including 2 N 25 per cent. 



Table 13. — Father with i factor for 7iegro N; mother without factor for negro N. 



» From a mating white X 45 per cent N, the mother probably a 3-factor colored. This man tans heavily 

 and, as N J- R = 52 per cent, he doubtless has one factor for black. 



