390 



BOARD OF AGRICULTURE. 



Valuation of Nitrogen, Phosphoric Acid, etc. — Con. 



* See above. 



Although it must be conceded that classifications like the 

 previous ones cannot be otherwise than somewhat arbitrary in 

 some of their details, yet they are true in their general out- 

 lines, and deserve a careful consideration of all those who are 

 aiming at a mutually satisfactory adjustment of the question 

 regarding: the determination of the commercial and agricult- 

 ural value of fertilizers. The various prices above assigned to 

 nitrogen, phosphoric acid and potassium oxide with reference 

 to the forms enumerated are indorsed by most leading agri- 

 cultural chemists, and are largely based upon actual observa- 

 tions in the laboratory and the field. 



Comparing our mode of calculating the commercial value 

 of fertilizers with that pursued in Europe, as has been shown 

 above, it is but too plain to escape notice that many of our 

 manufacturers have thus far better reasons for being satisfied 

 than our farmers. 



