18 HEREDITY OF SKIN COLOR IN NEGRO-WHITE CROSSES. 



Tadlb i8, — Father with 3 factors for negro N; mother with i factor for lugro N, 



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



• Taken in evfining! regardf-d by observer as unreliable; W 40. 



* Both parents Fi mulattoes. 



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



