COMIVIERCIAL FERTILIZERS. 



293 



Dry Fish. 

 (Collected of H. L. Phelps, Northampton, Mass.) 



Guaranteed composition : Total phosphoric acid, to 8 

 per cent. ; ammonia, 10 to 12 per cent, (equivalent to nitro- 

 gen, 8.24 to 10 per cent.). 



Per cent. 

 Moisture at 100° C, 9.10 



Total phosphoric acid, 

 Soluble phosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Nitrogen, 

 Insoluble matter, 



Valuation per two thousand pounds : — 



34. pounds of soluble phosphoric acid, 

 42.8 pounds of reverted phosphoric acid, 

 104.8 pounds of insoluble phosphoric acid, 

 168.4 pounds of nitrogen, . . . . 



Pheljys' Dry Fish. 

 (Collected of R. T. Prentiss, Holyoke, Mass.) 



9.08 

 1.70 

 2.14 

 5.24 

 8.42 

 2.62 



$45 65 



Guaranteed composition ; Total phosphoric acid, 6 to 8 

 per cent. ; ammonia, 10 to 12 per cent, (equivalent to nitro- 

 gen, 8.23 to 9.9 per cent.). 



Per cent. 



9.33 

 6.75 



Moisture at 100° C, 

 Total phosphoric acid. 

 Reverted phosjihoric acid, 

 Insoluble phosphoric acid, 

 Nitrogen, 

 Insoluble matter, 



Valuation per two thousand pounds : 



59.2 pounds of reverted phosphoric acid, 

 75.8 pounds of insoluble phosphoric acid, 

 187. pounds of nitrogen, 



2.96 

 3.79 

 9.36 

 2.5 



$5 33 



3 41 



37 40 



$46 14 



Dry Ground Fish Ouano. 

 (Stearns & Co., New York ; collected of B. F. Bridges, South Deerfield, Mass.) 



Guaranteed composition : Ammonia, 9 to 11 per cent, 

 (equivalent to nitrogen, 7.4 to 9 per cent.) ; bone phosphate, 



