334 



BOARD OF AGRICULTURE. 



advance of from twenty to twenty-five per cent above first 

 cost at the works. 



The valuation which accompanies, in many instances, the 

 analysis of the fertilizer, does not necessarily coincide with 

 that of the manufacturer, but simply approximates the price 

 at which the various constituents named in the analysis were 

 offered for sale in a good form in the general market at the 

 time of collection. 



During the past year, and for the earlier period of the 

 coming season, the following prices may be considered a fair 

 basis for the valuation of the essential constituents of fertil- 

 izers (only specified forms of the guaranteed composition have 

 received a particular consideration in the valuation) ; and, in 

 case of inferior mechanical condition of the fertilizers, the 

 customary lower rates have been adopted. 



Nitrogen in form of nitric acid 



Nitrogen in form of actual ammonia 



Nitrogen in form of animal matter . 



Soluble phosphoric acid . 



Reverted phosphoric acid 



Insoluble phosphoric acid 



Potassium oxide in muriate of potash 



Potassium oxide in kainit 



Potassium oxide in high grades of sulphate of potassa 



Price per pound, 

 in cents. 



. 25 



. 26 



. 24 



. 12.5 

 . 9 

 . 6 

 . 5 

 . 5 

 . 7 



It is well for farmers to consider that the manufacturers 

 are only obliged to furnish the lowest percentage guaranteed 

 in their statements of composition, and that the insoluble 

 phosphoric acid in many of our ammoniated superphosphates 

 consists of fine-ground mineral phosphates, which are less 

 efficient, and consequently of less worth, than that in form of 

 bones and of animal and vegetable matter. 



New- York and Boston Market-Prices for the Year 1881 



{March}. 



I. 



Price per pound, 

 In centa. 



I. Nitrogen. In form of nitric acid 25 



In form of ammonia 26 



In form of dried ground meat and blood, finely-pulver- 

 ized steamed bones, finely-ground fish-guano, Peru- 

 vian guano, urates, poudrettes, and artificial guano . 24 



