COMMERCIAL FTRTILIZERS. 



239 



Comj)lete Manure, Potatoes and Vegetables. 

 (II. L. Phelps, Northampton, Mass.) 



GuarantcGcl composition : total phosphoric acid, 8 to 10 

 per cent. ; soluble and reverted phosphoric acid (available), 

 5 to 6 per cent. ; potassium oxide (as sulphate), 5 to 7 per 

 cent ; ammonia (in form of organic matter and ammonia 

 salts), 4 to 5 per cent, (equivalent to nitrogen, 3.3 to 4.1 

 per cent.). 



Moisture at 100^ C, 

 Total phosphoric acid, 

 Soluble pliosphoric acid, . 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Potassiuui oxide. 

 Nitrogen (In organic matter), 

 Nitrogen (in ammonia salts). 

 Insoluble matter, 



Valuation per two thousand pounds : — 



96. pounds of soluble phosphoric acid, 

 45. pounds of reverted phosphoric acid, 

 23. pounds of insoluble phosphoric acid, 

 37.4 pounds of potassium oxide, . 

 36.4 pounds of nitrogen (in organic matter), 

 92 4 pounds of nitrogen (in ammonia salts), 



$10 07 



IXL Ammoniated Bone Superphosj)hate. 

 (Geo. W. Miles' Co., Milford, Ct ; collected of D. G. Wright, Northampton, Mass.) 



Guaranteed composition : soluble and reverted phosphoric 

 acid (available), 8 to 12 per cent. ; potassium oxide, 1 to 3 

 per cent. ; ammonia, 2.5 to 4 per cent, (equivalent to nitro- 

 gen, 1.6 to 3.3 per cent.). 



Moisture at 100° C, 

 Total phosphoric acid. 

 Soluble phosphoric acid, . 

 Reverted pliosplioric acid. 

 Insoluble phosphoric acid, 

 Potassium oxide. 



Nitrogen 



Insoluble matter, 



Per cent. 

 19.04 

 11.95 

 6.94 

 1.49 

 3.52 . 

 1.83 

 2.25 

 3.73 



