COMMERCIAL FERTILIZERS. 



355 



tassium oxide, 2 to 3 per cent. ; nitrogen, 2.06 to 2.88 per 

 cent, (equivalent to ammonia, 2^ to 3| per cent.). 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Soluble phosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid. 

 Potassium oxide, . 

 Niti'ogen (in organic matter), 

 Niti'ogen (in nitrates), . 

 Nitrogen (in ammonia salts), 

 Insoluble matter, . 



Valuation per two thousand pounds : — 



157.8 pounds of 

 56.4 pounds of 

 14.2 pounds of 

 38.4 pounds of 

 26.4 pounds of 

 0.2 poimds of 

 23.4 pounds of 



soluble phosphoric acid, 

 reverted phosphoric acid, 

 insoluble phosphoric acid, , 

 potassium oxide, . 

 nitrogen (in organic matter), 

 nitrogen (in nitrates), . 

 nitrogen (in ammonia salts) , 



Per cent. 



21.10 



11.42 



7.89 



2.82 



.71 



1.92 



1.32 



.26 



1.17 



3.38 



$12 62 

 4 23 



43 

 1 63 

 4 49 



96 

 4 33 



$28 69 

 Lowell Bone Fertilizer. 



(Mannfactured by J. M. Bntman, Lowell, Mass.; collected of J. M. Butman, 



Lowell, Mass.) 



Guaranteed composition : Total phosphoric acid, 10 to 18 

 per cent. ; soluble phosphoric acid, 6 to 10 per cent. ; po- 

 tassium oxide, 2 to 5 per cent. ; nitrogen, 2^ to 4 per cent. 



Per cent. 



Moisture at 100° C, 17.35 



Total phosphoric acid, 12.80 



Soluble phosphoric acid. 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Potassium oxide, . 

 Nitrogen, 

 Insoluble matter, . 



Valuation per two thousand pounds : 



129.8 pounds of soluble phosijhoric acid, 

 98.6 jjounds of reverted jjhosphoric acid, 

 27.6 pounds of insoluble phosphoric acid, 

 46.8 pounds of potassium oxide, . 

 54.2 pounds of nitrogen. 



$29 81 



