COMMERCIAL FERTILIZERS. 



29' 



Valuation per two thousand pounds : — 



52 6 pounds of soluble and reverted phosphoric acid, . $1 73 



116. pounds of insoluble phosphoric acid, . . . 5 22 



150.6 pounds of nitrogen, 30 12 



$40 07 



Stearns & Co's " No. 1 Eagle Brand " Fish and Potash. 

 (Collected of B. F. Bridges, South Deeificid, Mass.) 



Guaranteed composition: Moisture, 12 to 15 per cent.; 

 nitrogen IVora fish, 2| to 4^ per cent. (o(]uivaIcnt to ammo- 

 nia, 3 to 5 per cent. ) ; availal)le phosphoric acid from bone 

 phosphate, 3 to 5 per cent. ; insoluble phosphoric acid, 3 to 

 5 per cent. ; potassium oxide, 4 to G per cent. 



Per cent. 



IMoisture at 100° C, 

 Total phosphoric acid, . 



Soluble phosphoric acid. 

 Reverted phosphoric acid. 

 Insoluble phosphoric acid, 

 Potassium oxide. 

 Nitrogen, 

 Insoluble matter, 



Valuation per two thousand pounds 



37.8 pounds of soluble phosphoric acid, 

 52.2 pounds of reverted phosphoric acid, 

 59.8 pounds of insoluble phosphoric acid, 

 92.8 pounds of potassiunn oxidB, . 

 69.2 pounds of nitrogen, 



U.83 

 7.49 

 1.89 

 2.61 

 2.99 

 4.64 

 3.46 

 2.75 



$28 95 



Church's Fish and Potash. 

 (Collected of John B. Moore & Son, Concord, Mass.) 



No guaranty reported. 



Moisture at 100° C, 

 Total phosphoric acid, . 

 Soluble phosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Potassium oxide. 

 Nitrogen, 

 Insoluble matter, 



Per cent. 



23.73 

 5.92 

 2.21 

 2.13 

 1.58 

 2.66 

 4.94 

 1.35 



