l6 Wentworth. 



It must be remembered that duns are not popular, in America at least, 

 and hence there will probably be a deficiency. Also because of this 

 most duns will be heterozygous. 



Summary. 



The factors so far discussed will account for the following colors, 

 those qualitatively alike being grouped together: 

 Sorrel-Chestnut-Liver. 

 Black-Mouse. 



Bay-Brown-Bloodbay-Mahogany bay-Seal Brown. 

 Dun-Buckskin- Cream-Isabelline . 

 Gray-White. 

 Blue roan. 



Roan-Strawberry Roan-Red Roan. 

 Piebald-Skewbald-Blaze and white stockings. 

 Dapphng. 



The factors themselves follow with the tentative composition for 

 the different colors: 



Factor c equals Red or yellow basic pigment. 



Factor H equals Black. 



Factor B equals Restriction factor producing bay in presence of h. 



Factor g equals Factor for gray pattern. 



Factor R equals Factor for roan pattern. 



Factor d equals Factor for dappling pattern. 



Factor s equals Star or blaze in forehead and white on legs. 



Factor P equals Piebald and skewbald markings. Dr. W alther' 



Schabrackenscheckung. 

 Factor m equals light creamy yellow mane and tail. 

 Factor i equals dilution factor dominant to i, intense. 

 Chestnut equals c, may have b & m in some cases. 

 Black equals c h, may have D in some cases. 

 Mouse equals c H i, may have D in some cases. 

 Dun equals c i, c B i or c M i, according to kind. 

 Bay equals c H B. 

 Brown equals c H B D. 



Gray equals commonly c h G D, maybe c G D. 

 Blue roan equals c H R. 

 Red roan equals c r or c h b r, latter commonest. 



