North CarQJw^ftte Library 

 Kaleigh 



HEREDITY OF SKIN COLOR IN 

 NEGRO-WHITE CROSSES 



BY 



CHARLES B. DAVENPORT 



Director, Department of Experimental Evolution at Cold Spring Harbor 



With Appendix, being Abridgement of Field-notes, Chiefly of 

 Florence H. Danielson, Field Worker, Eugenics Record Office 



WASHINGTON, D. C. 



Published by the Carnegie Institution of Wasiunqton 



1918 



