Referate. 



Simpson, Q. I., and Castle, W. E. A family of Spotted Negroes. American 

 Naturalist, 1913. 47, p. 50 — 56. 

 The peculiarity in the family described consists of a piebald condition 

 of the skin and hair. A pure white patch begins on the top of the head, 

 extends down over the face, where it may be interrupted, and spreads out 

 over the chest; it may extend over the abdomen to the knees and round 

 the sides of the body to the back, but never reaches the mid-dorsal line. 

 The middle of the back, lower forearm and hands and the feet are always 

 pigmented. The white area may be quite unpigmented, or more or less 

 spotted. The founder of the stock was a woman whose parents were 

 normally coloured negroes, not, however, of pure blood. She married in 

 1868 a normal "medium dark" husband, and had fifteen children, eight 

 piebald and seven normal. They and their children are represented in the 

 following pedigree, constructed from data given in the paper. It is clear 

 therefore that only piebalds transmit the condition, and the case would be 

 a typical Mendehan dominant if there were not a considerable excess of 

 piebalds in the last generation. This is possibly due to incomplete records. 



gf e piebald male and female 



Cf O normal „ „ „ 



© O individual sex not given 



FF¥^ 61 c^i 



ftl 61 



L. DONCASTER. 



Pearson, Karl, F. R. S., Nettleship, E., F. R. S., and Usher, C. H., M. B., 



B. C. A Monograph on Albinism in Man. Part II, Text and Atlas. 



Part IV, Text and Atlas. (Draper's Company Research Memoirs, 1913, 



30s. and 21 s. net.) 



The second part of the Monograph on Albinism, of which the first 



part has already been issued, consists of several quite independent sections, 



which are not intended to be related except in their bearing on the general 



question of deficiency of pigment, for the word Albinism is used by the 



