508 



BOARD OF AGRICULTURE. 



3fapes' Complete Manure, "^ Brand." 

 (Collected of Peckham & Ross, Worcester, Mass.) 



Guaramteed composition ; Available phosphoric acid, 10 

 to 12 per cent. ; insoluble phosphoric acid, 2 to 4 per cent. ; 

 potassium oxide, 2.5 to 3.5 per cent, (equivalent to potas- 

 sium sulphate, 4.62 to 6.47 per cent.) ; ammonia, 3 to 4 

 per cent, (equivalent to nitrogen, 2.5 to 3.3 per cent.). 



Per cent. 



Moisture at 100° C, 18.40 



Total phosphoric acid, 12.79 



Soluble phosphoric acid, 4.77 



Reverted i^hosphoric acid, , . - . . . . 5.08 



Insoluble phosphoric acid, 2.94 



Potassium oxide, 3.09 



Nitrogen, 2.66 



Insoluble matter, 2.44 



Valuation per two thousand pounds : — 



95.4 jjounds of soluble phosphoric acid, 

 101.6 pounds of reverted phosphoric acid, 

 58.8 pounds of insoluble phosphoric acid, 

 61.8 pounds of potassium oxide, . 

 53.2 pounds of nitrogen, 



129 72 



E. Frank Coe's Ammoniated Bone Superphosphate. 

 (Collected of J. Clark & Son, Worcester, Mass.) 



Guaranteed composition : Total phosphoric acid, 11 to 13 

 per cent. ; soluble phosphoric acid, 7 to 9 per cent. ; avail- 

 able phosphoric acid, 10 to 12 per cent. ; insoluble phos- 

 phoric acid, 2 to 3 per cent. ; potassium sulphate, 3 to 4 

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

 monia, 2^ to 3 1 per cent.). 



Per cent. 



Moisture at 100° C, 9.06 



Total phosphoric acid, 12.06 



Soluble phosphoric acid, 7.93 



Reverted phosphoric acid, 1.59 



Insoluble phosphoric acid, 2.54 



Potassium oxide, 1-83 



Nitrogen, 2.32 



Insoluble matter, 6.60 



