68 AGRICULTURAL EXPERIMENT STATION. [Jaa. 



3. Local Market Value per Ton of tJie Various Articles of 

 Fodder used. 



4. Valuation of the Essential Fertilizing Constituents contained 



in the Various Articles of Fodder used. 

 Nitrogen, 16^ cents per pound ; pbosphoric acid, 6 cents ; potassium oxide, 4| cents. 



[Per cent.] 



