96 The Third and Fourth Generation 



The several combinations in this Ust between 

 that of the full-blooded negro and the pure white 

 make possible several shades of dark pigmenta- 

 tion. What appears as a blend of black and 

 white resulting in a dilute black is really the 

 inheritance of one or more of these black 

 determiners, thus producing the several possible 

 intermediate shades. 



Little is known as yet concerning the 

 behavior of the other negro characteristics in 

 inheritance. They apparently are largely inde- 

 pendent of each other and of skin color, so that 

 in crosses with whites the broad nose, the thick 

 lips, or the long arms may any or aU appear 

 in a very light individual, while a dark-skinned 

 individual may have the features of the white. 

 Negro blood is not necessarily an index of 

 mental inferiority. W. E. Burghardt DuBois, 

 author, professor of economics at Atlanta 

 University, an acknowledged leader in southern 

 problems, and Paul Laurence Dunbar, American 

 poet, are samples of the continually recurrent 

 intellectual ability in individuals of pure negro 

 extraction. 



