The relative influence of parents is further af- 

 fected by purity of blood, by constitution, and 

 by physical vigor. The age of a parent may 

 thus have much to do with the question. Lack 

 of bodily exercise may tend to lessen the pro- 

 portion of influence. Excessive use in breed- 

 ing will cause diminution of power to trans- 

 mit qualities. 



" PEDIGREE 



" From the study we have made of the prin- 

 ciples of breeding we must conclude that the 

 ancestry of our breeding animals is of very 

 great significance in determining results. The 

 development of the best breeds of farm stock 

 has been in very striking degree the fixing of 

 the desirable and prepotent characters of a 

 few ancestors upon numerous descendants. 



' The pedigree of an animal is his line of 

 descent, his list of progenitors; in short, his 

 ancestry. In stock-breeding, the term is often 

 applied to signify the statement on record of 



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