COMMERCIAL FERTILIZERS. 



549 



Williams & Clark Co.'s Americus Ammoniated Bone SuperpJios- 



2)liate. 

 (Collected of C. A. Bartlctt, Worcester, Mass.) 



Guaranteed composition : Total phosphoric acid, 11 to 16 

 per cent. ; sohiblo phosphoric acid, 8 to 9 per cent. ; re- 

 verted phosphoric acid, 2 to 3 percent; potassium oxide, 

 2 to 3 per cent, (equivalent to potassium sulphate, 4 to 6 

 per cent.) ; nitrogen, 2 to 3 per cent, (equivalent to am- 

 monia, 3 to 4 per cent.). 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Soluble phosphoric acid, 

 Reverted phosi^horic acid. 

 Insoluble phosphoric acid, 

 Potassium oxide, . 

 Nitrogen, 

 Insoluble matter, . 



Valuation per two thousand pounds : — 



182.8 pounds of soluble phosphoric acid, 

 27.G pounds of reverted phosphoric acid, 

 8.4 pounds of insoluble j^hosphoric acid, 

 4.0.0 pounds of potassium oxide, . 

 6G.G pounds of nitrogen, 



Per cent. 



15.04 

 10.94 

 9.14 

 1.38 

 .42 

 2.25 

 2.83 

 3.43 



$14 62 



2 07 



25 



2 48 



9 91 



$29 33 



Bay State Fertilizer. 



(Manufactured by Clark's Cove Gnano Company, New Bedford, Mass, ; collected of 

 Heart & Aliiii, New Bedford, Mass.) 



Guaranteed composition : Total phosphoric 'acid, 10 to 

 13 per cent. ; soluble phosphoric acid, G to 9 per cent. ; 

 reverted phosphoric acid, 2 to 2i per cent. ; available phos- 

 phoric acid, 8 to 11 per cent.; potassium oxide, 2 to 3.5 

 per cent. ; nitrogen, 2.1 to 2.8 per cent, (equivalent to am- 

 monia, 2.55 to 3.5 per cent.). 



Per cent. 



^loisture at 100" C, 13-10 



Total phosphoric acid, 13. IG 



Soluble pIios])horic acid, 

 Reverted phosphoric acid. 

 Insoluble phosphoric acid, . 

 Potassium oxide, . 

 Kitrogen, .... 

 Insoluble matter, . 



7.84 

 2.33 

 2.89 

 1.80 

 2.93 

 4.82 



