468 



ANNUAL REPORT SMITHSONIAN INSTITUTION, 1921. 



The differences in eye color between the South and the North and 

 between either of these and the Middle States are seen to be only 

 slight, even less than with the hair. There are a few more lights, but 

 also a few more browns among the Yankees than among the South- 

 erners, but the differences are too small to be given any special sig- 

 nificance. There is, however, as with the hair, a marked difference 

 shown by the Appalachian mountaineers, among whom there are less 

 pure lights, less pure browns, and a larger proportion of mixed shades. 

 It was seen (p. 459) that precisely the same conditions were observed 

 in this special group in relation to hair colors. 



CORRELATION OF EYE AND HAIR COLOR. 



In order to make the presentation of the records here dealt with 

 as clear as possible, it will be necessary to show, besides the separate 

 data on hair and eyes, also the associations of conditions. Not every 

 light eye is accompanied with light hair, thereby enabling us to class 

 the subject as blond, nor every dark hair with a dark eye, giving us 

 a well-marked brunet. There are many exceptions in fact to such 

 associations. Conditions were found in brief, as follows : 



Old Americans: Correlation in eye and hair pigmentation, both sexes. 

 (Percentage in round numbers.) 



Persons among the Old Americans with light eyes that show no 

 mixture have in nearlv two-fifths of their number also light hair, 

 while in approximately one-half of the cases the hair is medium, 

 and in nearly one-eighth it is dark. Red hair occurs, but in slightly 

 lesser proportion than in the general average. 



Those with mixed eyes (lights with more or less marked traces of 

 brown) have light hair in only one-fifth, medium hair in one-half, 

 and dark hair in one-fourth of their number. In respect of both 

 the light and dark hair they start, as might be expected, practically 

 midway between the pure light-eyed and pure brown-eyed series. 

 But they show more mediums, i. e., more blonds, and decidedly more 

 reds. The latter condition demonstrates the close association of, 

 perhaps, as many as half of the cases of red hair with mixture of 

 the lighter and the darker racial elements in the population. 



