COMMERCIAL FEtiTlLlZERS. 



293 



Dry Fish. 

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



Guaranteed composition : Total phosphoric acid, 6 to 8 

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

 gen, 8.24 to 10 per cent.). 



Per cent. 



9.10 



Moisture at 100* C, 

 Total phosphoric acid, . 

 Soluble phosphoric acid, 

 Reverted phosphoric acid, 

 Insoluble jihosphoric acid. 

 Nitrogen, 

 Insoluble matter, 



9.08 

 1.70 

 2.14 

 5.24 

 8.42 

 2.62 



Valuation per two thousand pounds ; — 



34. ' pounds of soluble phosphoric acid, 

 42.8 pounds of reverted phosphoric acid, 

 104.8 pounds of insoluble phosphoric aqid, 

 168.4 pounds of nitrogen, .... 



Phelps' Dry Fish. 

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



$45 65 



Guaranteed composition : Total phosphoric acid, 6 to S 

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

 gen, 8.23 to 9.9 per cent.). 



Per cent. 



9.33 



Moisture at 100° C, 

 Total phosphoric acid. 

 Reverted phosphoric 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, 



6.75 

 2.96 

 3.79 

 9.35 

 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, 



