884 



ANNUAL. REPORT OF THE 



Off. Doc. 



Wholesale Cost Per Pound of Fertilizer Constituents (New York). 

 I. Ingredients Supplying One Constituent. 



Material. 



Constituent Valued. 



o 



m 



3 



o 



Sulfate of ammonia 



Nitrate of soda, 



Dried blood, high grade 



Concentrated tankage, 



Refuse bone-black 



Phosphate rock:* 



(Peace river, 60 per cent.), ... 



(Tennessee, 7S per cent.) 



(South Carolina, 60 per cent.), 



Acid phosphate 



Double manure salts 



Sulfate of potash 



Muriate of potash 



Kainit, 



Nitrogen 



Nitrogen, 



Nitrogen 



Nitrogen 



Phosphoric acid, 



total, 



Phosphoric acid, total, ... 

 Phosphoric acid, total, ... 

 Phosphoric acid, total, ... 

 Phosphoric acid available, 



Potash 



Potash 



Potash, 



Potash 



14.58 



12.73 



15.16 



9.41 



3.20 



.375 

 .53 

 3.13 

 4.20 

 4.28 

 3.56 

 3.55 



17.50 

 15.28 

 18.19 

 11.29 

 3.84 



.45 

 .67 

 3.76 

 5.04 

 5.14 

 4.27 

 4.26 



*The prices of phosphate rock are f. o. b. at the respective points of shipment, not New York, 

 and are taken from the reports of the Engineering and Mininrj Journal, The prices for potash 

 are taken from the schedule of the Syndicate and those of the remainder from the Oil, Paint 

 and Drug Reporter. 



The quotations for bone are given without specific reference to 

 quality, so that.it is impossible from these data to fairly apportion 

 their several wholesale values to the nitrogen and phosphoric acid 

 contained in this material. As compared with tankage, the gen- 

 eral tendency is to assign a higher commercial rating to the phos- 

 phoric acid in bone and to the nitrogen a rating not very different 

 from that given in tankage. The quotations of Thos. J. White & 

 Co. show an average wholesale rate in Baltimore during Septem- 

 ber, 1902, to March, 1903, for crushed tankage to have been $2,505 

 per unit of ammonia and $0.10 per unit of bone phosphate of lime. 

 This is equivalent to 13.04 per unit of nitrogen and $0,218 per unit 

 of phosphoric acid. The average composition of the ground bone 

 and bone meal samples analyz -^ last fall in Penns3dvania was: 

 Phosphoric acid, 23.47 per cent.; nitrogen, 3.23 per cent. The pre- 

 pared bone contains less fat and moisture and often less nitrogen 

 than the ordinary "rough bone," but these differences tend, in a 

 manner, to neutralize each other. 



Assuming for the rough bone quoted in the New York market 

 the same composition as the bone meal sold in Pennsylvania and 

 for the value of the nitrogen .$3.04 per unit, the values per pound of 

 the several constituents would be: 



