152 Dynamic Evolution 



cows producing the greatest amount of milk, 

 but the third most eminent sire does not 

 appear at any place in any pedigree. An 

 inspection of the cows sired by this bull 

 shows that they are noted for small quantities 

 of milk containing high percentages of butter 

 fat. An inspection of the pedigree of this 

 bull shows that he was his dam's first calf, 

 while a similar inspection of the pedigrees 

 of all of the other famous bulls shows that 

 not one of them is am r earlier product than 

 his dam's fourth calf. It is clear from this 

 case alone that the manner in which the total 

 solids in milk are divided into fat, proteids, 

 and sugar is in no way influenced by the age 

 of the dam. 



The best of the Holstein-Friesian stock in 

 America is descended, in one line or another, 

 from a cow known as DeKol 2d. This cow 

 lived long enough to have at least eleven 

 calves. What became of her early progeny 

 and their descendants does not appear, but 

 after she was eight years of age she became 

 the dam of five bulls which became very 



