xn INTERMEDIATES 131 



On the other hand, from the cross between the darkly 

 pigmented Eastern races and the white segregation seems 

 to occur in subsequent generations. Families are to be 

 found in which one parent is a pure white, while the other 

 has arisen from the cross between the dark and Hght in 

 the first or some subsequent generation. Such families 

 may contain children indistinguishable from pure blonds as 

 well as children of very dark and of intermediate shades. 

 As an example, I may give the following pedigree, which 

 was kindly communicated to me by an Anglo-Indian 

 friend (Fig. 29). The family had resided in England for 

 several generations, so that in this case there was no ques- 

 tion of a further admixture of black. Most noticeable is 

 the family produced by a very dark lady who had mar- 

 ried a white man. Some of the children were interme- 

 diate in colour, but two were fair whites and two were dark 

 as dark Hindus. This sharp segregation or spHtting out 

 of blacks and whites in addition to intermediates strongly 

 suggests that the nature of the inheritance is Mendelian, 

 though it may be complicated by the existence of several 

 factors which may also react upon one another. Nor 

 must it be forgotten that in so far as these different factors 

 are concerned the whites themselves may differ in con- 

 stitution without showing any trace of it in their appear- 

 ance. Before the case can be regarded as settled all these 

 different possibilities will have to be definitely tested. 

 With the dark Eastern races as with the negro we cannot 



