COAT CHARACTERS IN GUINEA-PIGS AND RABBITS. 



albinos free from latent black may be obtained from red or yellow 

 hybrids, like 9? I 3>^i 1 34S? and 1351 , has already been explained. 

 It is simply to mate the hybrids inter se, when there should be produced 

 albino young, approximately one-fourth of all the young produced, and 

 these albinos should be free from latent black. A number of albinos 

 have been so produced in these experiments, but only one of them, viz, 

 c? 1999, Table F, has yet been tested. It is evident that his gametes 

 are, as expected, free from latent black. 



This experiment indicates methods of practical utility to the breeder 

 who desires either albinos as free as possible from peripheral pigment 



TABLE G. Matings inter se of red or yel/oiv animals having albinism recessive. 

 None of the young black-pigmented. Expected proportion of albinos i in 4. 



or animals of various shades of red or yellow. For (i) albinos free 

 from latent black have much less peripheral (chocolate or chocolate 

 and black) skin pigment than others, and (2), when mated with red 

 or yellow animals they frequently produce young of a lighter shade of 

 red or yellow than that of the pigmented parent. He who mates 

 ordinary albinos with red animals in hope of obtaining yellows will 

 be sorely disappointed, for the young will be mottled with black 

 (received latent from the albino parent) ; but he who employs albinos, 

 such as I have described, in matings with red or yellow animals, may 

 doubtless with patience realize his fondest hopes. By this method I 

 have been able to produce cream-colored animals of a much lighter 

 shade than any I ever saw before. Theoretically it should be possible 

 by following up this method to produce animals practically white, but 



