TRADK VALUES 



OF FERTILIZING INGREDIENTS IN RAW MATERIALS 



AND CHEMICALS. 



189(5. 



Cents per pound . 



Nitrogen in ammonia salts, 15. 



" " nitrates, 13.5 



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



and in higli-grade mixed fertilizers, 14. 

 " " " cotton-seed meal, 12. 



" " '' fine ground bone and tankage, 13.5 



" " " fine ground medium bone and tankase, 12. 



'* " " medium bone and tankage, 9. 



'* " "• coarse bone and tankage, 3. 



'* " '' hair, horn-shavings and coarse fish 



scraps, 3. 



Phosphoric acid soluble in water, 5.5 



" " 8olul)le in ammonium citrate, 5. 



" "in fine bone and tankage, 5. 



*' "in fine medium bone and tankage, 4. 



" " in medium bone and tankage, 2.5 



" "in coarse boAe and tankage, 2. 



" " in fine ground fish, cotton-seed meal, linseed 



meal, castor pomace and wood ashes, 4.5 

 " " insolul)le (in am. cit.) in mixed fertilizers, 2. 



Potash as High Grade Sulphate, and in mixtures free from 



Muriate, 5. 



" " Muriate, 4.5 



The raanurial constituents contained in feedstufifs are valued as 

 follows : 

 Organic Nitrogen, 12. 



Plio«plioric acid, 4.5 



Potash, 5. 



The market value of low priced materials used for manurial pur- 

 poses, as salt, wood ashes, various kinds of lime, barnyard manure, 

 factory refuse and waste materials of different description, quite 

 frequently does not stand in a close relation to the market value of 

 the amount of essential arlicles of plant food tliey contain. Their 

 cost varies in different localities. Local facilities for cheap transpor- 

 tation and more or less advantageous mechanical condition for a 



