COMMERCIAL FERTILIZERS. 



337 



Trade Values of Fertilizing Ingredients in Raw Materials and 



Chemicals. 



1886. 



Cents per pound 



Nitrogen in ammonia salts, 



Nitrogen in niti-ates, ....... 



Niti'ogen in dried and lino ground fish, 



Organic niti'ogen 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 niti'ogen in coarse medium bone. 



Organic nitrogen in coarse bone, horn shavings, hair and 



fish scraps, . 



Phosphoric acid, soluble in water, .... 

 Phosphoric acid, soluble in ammonia citrate,* . 

 Phosphoric acid, insoluble in fine ground fish, and in fine 



bone, 



Phosphoric acid, insoluble in fine medium bone. 

 Phosphoric acid, insoluble in medium bone. 

 Phosphoric acid, insoluble in coarse medium bone, . 

 Phosphoric acid, insoluble in coarse bone, 

 Phosphoric acid, insoluble in fine ground rock phosphate 

 Potash, as high grade sulphate, .... 



Potash, as kainite, ....... 



Potash, as muriate, 



18i 



17 



17 



17 

 17 

 15 

 13 

 11 



n 



7 

 6 

 o 

 ■4 

 3 

 2 



H 

 H 



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

 1st, the respective ingredients could be bought at retail for 

 cash, per pound, in our leading markets, in raw materials, 

 which are the regular source of supply. 



They also correspond to the average wholesale prices for 

 the six months ending March 1st, plus 20 per cent, in case 

 of goods for which we have wholesale quotations. The cal- 

 culated values obtained by the use of the above figures will 

 be found to agree fairly with the reasonable retail price in 

 case of standard raw materials, such as Sulphate of Ammo- 

 nia, Dry Ground Fish, Nitrate of Soda, Castor Pomace, 

 Muriate of Potash, Cotton Seed, Sulphate of Potash, Bone, 

 Dried Blood, Azotin, Plain Superphosphates. 



* Dissolved from two grains of phosphate, unground, by 100 C.C. neutral solution 

 of ammonium citrate, sp. gr. 1 09, in 30 minutes at 65° C, with agitation once 

 in live minutes ; commonly called " reverted " or " backgonc " phosphoric acid. 



