The market reports of centres of trade in New England, New York 

 and New Jersey, aside from consultations with leading manufacturers 

 of fertilizers, furnish us the necessary information regarding the 

 current trade value of fertilizing ingredients. The subsequent 

 statement of trade values is obtained by taking the average of the 

 wholesale quotations in New York and Boston, during the six months 

 preceding March 1st, 1885, and increasing them by 20 per cent., to 

 cover expenses for sales, credits, etc. They are recognized and 

 accepted by the experiment stations of Connecticut, Massachusetts 

 and New Jersey. 



TRADE VALUES OF FERTILIZING INGREDIENTS IN 

 RAW MATERIALS AND CHEMICALS. 



Nitrogen in Ammonia Salts. 



" Nitrates, 



" Dried and fine ground fish, 



Organic nitrogen in guano and fine ground 



blood and meat. 

 Organic nitrogen in cotton seed, linseed meal 



and in castor pomace, 

 Organic nitrogen in fine ground bone, 

 Organic nitrogen in fine medium bone. 

 Organic nitrogen in medium bone. 

 Organic nitrogen in coarse medium bone, 

 Organic nitrogen in coarse bone, horn shavings 



hair, and fish scraps. 

 Phosphoric acid soluble in water, 



" " " ammonia citrate,* 



Phosphoric acid insoluble, in dry fine ground 



fish, and in fine bone. 

 Phosphoric acid insoluble, in fine medium . 



bone. 

 Phosphoric acid insoluble, in medium bone, 



" " '' coarse medium bone, 



" ••' " coarse bone, 



" " " fine ground rock phos 



phate. 

 Potash, as high grade sulphate, 

 " Kaiuite, 



" Muriate, 



The above trade values are the figures at which, on March 1st, the 

 respective ingredients could be bought at retail, for cash in our 

 markets in the raw materials, which are tiie regular source of supply. 



♦Dissolved from two grams of Phosphate, nngrounrl, by 100 C. C. neutral solution 

 of ammonium citrate sp gr. 1.00 in 30 minutes at 65° C, with agitation once in five 

 minutes; commonly called " reverted " or" backgone " phosphoric acid. 



