DIVISION OF CHEMISTRY. 



Trade Values and Fertilizer and Soil Analyses 



By C. a. go ess MANN and H. D. HAS KINS. 



1. 



TRADE VALUES OF FERTILIZING INGREDIENTS IN 



RAW MATERIALS AND CHEMICALS FOR 



igo6 AND 1907. 



1906 1907 



Cents per pound. 



Nitrogen in ammonia, salts, 17.5 17.5 



" " nitrates, 16.5 18.5 

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



and in high-grade mixed fertilizers, 18.5 20.5 



" " " fine bone and tankage, 18.0 20.5 



" " " coarse bone and tankage, 13.0 15.0 



Phosphoric acid soluble in water, 4.5 5.0 



" " soluble in ammonium citrate, 4.0 4.5 



" " 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 



" " Carbonate, 8.0 8,0 



