666 



ANNUAL REPORT OF THE 



Off. Doc. 



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

 I. Ingredients Supplying One Constituent. 



Sulphate of ammonia, 



Nitrate of soda, 



Dried blood, liigh grade, 



Concentrated tankage 



Refuse bone black: 



Oil 



Sugar. 



Phosphate rock:* 



Tennessee, 78 per cent 



South Carolina, 60 per cent 



Acid phosphate, 



Double manure salts 



Sulphate 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, 



18.68 

 17.20 

 19.33 

 16.12 



2.99 

 3.83 



.618 

 .804 

 3.83 

 5.32 

 6.42 

 4.60 

 S.S6 



•The prices of phosphate rock are ff o. b. at the respective points of shipment, not New 

 York, and are taken from the reports of the Engineering and Mining Journal. The prices for 

 potash are taken from the schedule of the syndicate. The prices for concentrated tankage are 

 taken from the reports of Thos. J. White & Co., 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 

 general tendency is to assign a higher commercial rating to the 

 phosphoric acid in bone and to the nitrogen a rating not very dif- 

 ferent from that given in tankage. Tlie quotations of Thos. J. 

 White & Co. show an average wholesale rate in Baltimore during 

 September, 1904, to March, 1905, for crushed tankage to have been 

 2.6125 per unit of ammonia and ^0.10 per unit of bone phosphate of 

 lime. This is equivalent to |3.17 per unit of nitrogen and |.218 per 

 unit of phosphoric acid. The average composition of the ground 

 bone and bone meal samples analyzed last fall in Pennsylvania was: 

 Phosphoric acid, 22.59 per cent; nitrogen, 2.9C 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 man- 

 ner, 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 $3.17 per unit, the values per pound of the sev- 

 eral constituents would be: 



