58 Oattle Problems. 



growLli of horses, of which much is said ; and of cows, of 

 whicli little is thought. 



The skin of the back-udder is drawn down in as nearly 

 a perpendicular line as may be, by the weight of yield. 

 And where the muscles are full, within the limits the stVain 

 extends to, the skin, when strained, fits close against promi- 

 nent elevations, while it does nei fit close to the hollow 

 spaces. The close attachment of the skin to the fuller 

 surface of the muscles, prevents, to a considerable extent, 

 the reversal of the hair, so causing curved and irregular 

 margins of the Yield Mark. And as these forms vary in 

 every cow, one from another, there can be no basis for 

 classification on trivial difference in outline form of Yield 

 Marks. 



The extent of size in the Yield Mark, without regard 

 to form, in cows of any of the multitude of various forms 

 and different sizes, is according to the maximum yield, 

 and yield weight, whatever may be the size, or form, or 

 breed of the cows on which the Yield Mark is found. 



