FURTHER DATA ON THE MEASUREMENT OF INBREEDING. 



247 



differences which we have seen to exist in their pedigrees in 

 respect of the degree and nature of the inbreeding there exist- 

 ing. These facts constitute a definite, though small, bit of evi- 



FiG. 55. Photograph of the sire of Blossom's Glorene, Don of Peach 

 Hill Farm (86163). 



dence in favor of the view, which finds much support in the 

 literature of both practical stock breeding and experimental 

 genetics, that the degree of inbreeding, in and of itself alone, has 

 very little directly to do with the qualities of the ofifspring. 



Summary. 



This bulletin is a continuation of Bulletin 215 of this Station. 

 In it the subject of continued cousin mating and continued 

 mating of the avuncular type are first discussed. It is shown 

 that all types of cousin and avuncular matings if continued lead 

 to values of the coefficient of inbreeding approaching 100 per 

 cent. 



