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THE PRINCIPLES OF AGRICULTURE. 



The following table gives these two values separately 

 and combined : 



Double Value of Food, per Ton. 



The True Cost of Food. In estimating the real expense 

 involved in the food furnished to stock, the value of the 

 food as a source of fertility to the farm should be de- 

 ducted from its cost or market value. The results will 

 vary widely with the variation in market prices. 



The following table will illustrate this point : 



Cost of Food in Excess of Value of Manure. 



