EYE COLOR AND HAIR COLOR IN MAN. 



57 



dren may be produced, but the latter will be more abundant than 

 in the previous case. Light-haired parents rarely produce dark- 

 haired children. 



In order to eliminate so far as possible the effects of age a 

 separate tabulation (Table III.) was made of the relation of the 

 hair color of parents and grandparents. As we have seen, barring 

 the effects of turning gray, there is comparatively little average 

 difference between these two classes. In order to secure as much 

 data as possible we have combined the uncompiled data of the 

 Davenports in relation to parents and grandparents with our own. 

 As this material was classified somewhat differently from ours 



Table II. 



Showing the Number of Cases of the Various Kinds of Hair Color 



Resulting from Different Matings ; Au, Auburn ; Blk, Black ; 



Br, Brown ; Lt Br, Light Brown ; Rd, Red ; Yl, Yellow. 



we have attempted to bring it so far as possible within the same 

 categories ; the browns and dark browns of the Davenports we 

 have called browns, the yellow and golden colors have been 

 grouped as yellow, the yellowish browns and light browns as 

 light browns, the dark reds and auburns as auburns, and the 

 blond and flaxen types as flaxen. The number of cases which 

 might be classified differently from the grouping employed is 

 quite small and could not vitiate any conclusions we have 

 attempted to draw from the data. 



