TYPES AND MARKET CLASSES OF LIVE STOCK 



Pan-American Exposition, Buffalo, 1901; six-months test. 



165 



Louisiana-Purchase Exposition, St. Louis, 1004; 120-day test. 



The tests at the two expositions cannot be compared, except 

 in the most general sort of way, because different prices were 

 charged for feed and credited for milk and butter-fat produced. 

 All of the tests plainly show that greater variations in economy 

 of production exist within the various breeds than between the 

 breeds. This is a point often forgotten by those who argue 

 upon the comparative merits of breeds. At the Pan-American 

 Exposition, the best Guernsey cow returned five times as much 

 profit as the poorest Dutch Belted cow. At the Louisiana- 



