36 



TRADE VALUES OF FERTILIZING INGREDIENTS IN 

 RAW MATERIALS AND CHEMICALS FOR 1903. 



1902 1903 



CENTS PER POUND 



Nitrogen in ammonia salts, 16.5 17.5 



" nitrates, 15.0 15.0 



Organic nitrogen in dry and fine ground fish,meat,blood, 



and in high-grade mixed fertilizers, 16.5 17.0 



" " " fine bone and tankage, 16.0 16.5 



'• " " medium bone and tankage, 12.0 12.0 



Phosphoric acid soluble in water, 5.0 4.5 



" " soluble in ammonium citrate, 4.5 4.0 



" " in fine ground fish, bone and tankage, 4.0 4.0 



■" " in cottonseed meal, castor pomace and 



wood ashes, 4.0 4.0 



" " in coarse fish, bone and tankage, 3.0 3.0 



" " insoluble (in water and in neutral citrate 



of ammonia) in mixed fertilizers, 2.0 2.0 



Potash as Sulphate, free from Chlorides, 5.0 5.0 



" " Muriate (chloride), 4.25 4.25 



The above schedule of trade values was adopted by representa- 

 tives of the Massachusetts, ('onnecticut, Rhode Island, Maine, Ver- 

 mont and New Jersey Experiment Stations at a conference held dur- 

 ing the month of March, 1903, and is based upon the condition of 

 the fertilizer market in centers of distribution in New England, New 

 York and New Jersey during the six months preceding March, 1903, 

 and refers to the current market prices of the leading standard raw 

 materials, which furnish nitrogen, phosphoric acid and potash, and 

 which enter largely into the manufacture of our commercial fertil- 

 izers. 



