COMMERCIAL FERTILIZERS. 



325 



65.8 pounds of insoluble phosphoric acid, 

 31.8 pounds of potassium oxide, , 

 69.4 pounds of nitrogen (in organic maite ), 

 10.8 pounds of nitrogen, (in nitrates), . 



Chittenden's Done. 



$2 51 

 1 35 



11 88 

 1 94 



im 77 



(National Fertilizer Co, Bridgeport, Conn.; collected of Wilder & PufTer, 

 Springfield, Mass.) 



Guaranteed composition : Ammonia, 2 to 3 per cent, 

 (equivalent to nitrogen, 1.65 to 2.47 per cent.) ; total 

 phosphoric acid, 22 to 24 per cent. 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Nitrogen, ... 

 Insoluble matter. 



Valuation per two thousand pounds : 



78.4 pounds of reverted phosphoric acid, 

 429. pounds of in.soluble phosphoric acid, 

 45.6 pounds of nitrogen," 



Per cent. 



9.40 

 25.37 



3.92 

 21.45 



2.28 



1.65 



$7 06 



19 30 



8 20 



$34 56 

 Williams, Clark & Co.''s '■'■ Americus"'' Brand (Onts, Barley, Rye 

 and Tobacco.') 

 (Collected of Bragg & Co., Springfield, Mass.) 



Guaranteed composition : Available phosphoric acid, 6 to 

 per cent. ; potassium oxide, 8 to 10 per cent. ; ammonia, 

 to 5 per cent, (equivalent to nitrogen, 3.3 to 4.1 per 



cent.) 



Moisture at 100° C, 

 Total phosphoric acid, 

 Soluble phosphoric acid, . 

 Reverted phosphoric acid. 

 Insoluble phosphoric acid, 

 Nitrogen (in organic matter), 

 Nitrogen (in nitrates). . 

 Potassium oxide. 

 Insoluble matter. 



Valuation per two thousand pounds : — 



98 6 pounds of soluble phosphoric acid, 

 48.4 pounds of reverted pho-sphoric acid, 

 27.8 pounds of insoluble phosphoric acid, 



Per cent. 

 13.91 

 8.74 

 4.93 

 2.42 

 1.39 

 2.69 

 1.37 

 7.83 

 3.26 



19 86 

 4 36 

 1 25 



