HEREDITY OF ALBINISM 
ROBERT ROY (FIG, 14) 
That albinism in rats, mice, guinea pigs, rabbits, etc., is inherited as a recess ve 
trait is the experience of all breeders. 
law is a priori probable but it is obviously difficult to secure cases for what is 
the best test of recessiveness, viz., the exclusively albinic progeny of two 
albinic parents. 
Some years ago Mrs. Davenport and I recorded 
That albinism in man follows the same 
. (American Naturalist, December, 
1910) three pedigrees giving the progeny of the matings of two albinos. 
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