COMMERCIAL FERTILIZERS. 



351 



Mape's Com Manure. 



(Collected of Earle & Peckhara, Worcester, Mass.) 



Guaranteed composition : Total phosphoric acid, 10 to 12 



per cent. ; potassium oxide, 6 to 7 per cent. ; nitrogen, 3.7 



to 4.1 per cent, (equivalent to ammonia, 4^ to 5 per cent.). 



$14 22 



Valuation per two thousand pounds : — 



177.8 pounds of soluble phosphoric acid, 

 53.2 pounds of reverted phosphoric acid, 

 48.8 pounds of insoluble phosphoric acid, . 

 95.2 pounds of potassium oxide, . 

 23.6 pounds of nitrogen (in ammonia salts), 

 16.4 pounds of nitrogen (in nitrates), . 

 32. pounds of nitrogen (in organic matter), 



$36 56 

 Mape's Comp)lete Manure. 

 (Collected of Earle & Peckbam, Worcester, Mass.) 

 Guaranteed composition: Total phosphoric acid, 10 to 12 

 per cent. ; potassium oxide, 4 to 5 per cent. ; nitrogen, 3.3 

 to 4.1 per cent, (equivalent to ammonia, 4 to 5 per cent.). 



Per cent. 



