PIGMENTATION IN OLD AMERICANS HRDLICKA. 483 



8. Differences between the " Yankees " and the Southerners in this 

 respect are only moderate, the former showing somewhat more 

 lights, less darks, few if any true blacks and less reds. But the 

 Southerners show almost identical conditions in regard to hair pig- 

 mentation as those of the central states and those of mixed-state an- 

 cestry. 



EYES. 



1. Approximately one-third of the eyes of the males and one-fourth 

 of the eyes of the females of the Old Americans are pure lights. 



2. One-sixth of the males and one-fifth of the females show eyes 

 the iris of which is pure brown (light, medium, or dark). 



3. Over one-half of the males as well as females have eyes that 

 show plain traces of brown with light. 



4. There are on the whole more light and less dark eyes than there 

 is of light and dark hair. 



5. Eeffional differences are less marked than with the hair, except 

 in isolated localities. 



6. There is a considerable but not a complete correlation between 

 the pigmentation of the eyes and that of the hair. Light eyes may in 

 some instances be associated with dark (though not black) hair; but 

 medium to dark eyes are as a rule accompanied by medium, dark, or 

 black hair. 



BLONDS OR BRUNETS. 



1. The classification of the Old Americans on the basis of both the 

 color of the eyes and hair brings out with special clearness a num- 

 ber of the conditions relating to pigmentation. 



2. Over one-half of the males and nearly one-half of the females 

 are "intermediates." 



3. Blonds are scarce, as are also true brunets, but the latter are 

 plainly more frequent, especially in the females. 



4. The females show slightly more blondes, more brunettes and less 

 intermediates than the males. 



GRAY HAIR. 



1. In general, grayness manifests itself early in the Old Americans. 



2. In the males, grayness proceeds apparently faster than in the 

 females. 



3. There is wide individual variation. 



LOSS OF HAIR. 



1. There are great sexual differences in this respect. The males 

 lose hair sooner, more rapidly and much more extensively than the 

 females. 



