THE AMERICAN NATURALIST [Vol. XLIII 



E. Fischers 's Ijair scale 1 ) the granules are small, very 

 few in each group (average 4) and slightly colored. The 

 dark red hair of the orangutan is due chiefly to granules 

 whose color is well reproduced by sepia on a clear back- 

 ground ; but in the head hair of the golden babboon, which 

 is striped golden and black, much diffuse golden pigment 

 is found and (in the black zones) dark sepia granules of 



medium size and frequency. In twoscore preparations 

 of the hair of man and primates we have not found in 

 any instance. jet-black granules such as are characteristic 

 of black mice. In our preparations, many of which are 

 thin sections kindly cut for us by Miss Lutz, the granules 

 vary in size, number and intensity, but there is no discon- 

 tinuity between the lighter and darker sepia pigments; 

 and, as stated, we have not found a coal black hair either 

 in Chinese, Japanese, Indian, Negro or Italian, and not 

 even in the black spider monkey. There is an interesting 

 parallel case in poultry where even in the Black Minorcas 

 and the Black Cochin the pigment is a dense sepia brown. 

 We conclude, therefore, that such discontinuous color 

 types as are described in domesticated animals such as 



1 Made by Franz Eosset, Freiburg i/Br. See E. Fischer, Korrespondenz- 

 Blatt, Deutsch. Gesell. f. Anthropologic, Ethnologie u. Urgeschichte, 

 XXXVIII, 141-147. September-December, 1907. 



