18 HEREDITY OF SKIN COLOR IN NEGRO-WHITE CROSSES. 



Table i8. — Father with 2 factors for negro N; mother with i factor for negro N. 



Table 19. — Father with 2 factors for negro N; mother with 2 factors for negro N. 



" Taken in evening; regarded by observer as unreliable; W 40. 

 ' Both parents Fi mulattoes. 



Table 20. — Father with 2 factors for negro N; mother with 3 factors for negro N. 



