322 



BOARD OF AGRICULTURE. 



Animal Fertilizer with Potash. 



(Messrs. L. B. Darling & Co., Pawtucket, R.I.; sent by George W. Hum- 

 phrey, Rochester, Mass.) 



Per cent. 



Moisture at 100° C 10.22 



Soluble phosphoric acid . 

 Reverted phosphoric acid 

 Insoluble phosphoric acid 

 Nitrogen 

 Potassium oxide 

 Sand, &c. 



1.91 

 2.96 

 6.76 

 5.73 

 4.68 

 .09 





Valuation per ton of two thousand pounds : — 



38.2 pounds of soluble phosphoric acid . . $4 59 



59.2 pounds of reverted phosphoric acid . 5 33 



135.2 pounds of insoluble phosphoric acid . 8 11 



114 6 pounds of nitrogen . . . . . 22 92 



93 6 pounds of potassium oxide . . . 3 75 



$44 70 

 Animal Guano. 



(Messrs. Edwards & Thompson, Chicago, m. ; collected of Henry Hubbard, 



Hatfield, Mass.) 



Per cent. 



Moisture at 100° C 11.37 



53.73 



Organic and volatile matter 

 Ash constituents 

 Phosphoric acid 

 Nitrogen 



46.27 

 9.69 

 6.02 



Valuation per ton of two thousand pounds 



193.8 pounds of phosphoric acid . . 

 120.4 pounds of nitrogen . . 



$11 62 

 24 08 



$35 70 



Ammoniated Stjpekphosphates. 

 I. 



Bradley's XL Superphosphate. 



(Bradley Fertilizer Co., Boston, Mass. ; collected of Messrs. Bagg & Batch- 

 elder, Springfield, Mass.) 



Per cent. 



Moisture at 100° C 18.70 



Organic and volatile matter 57.66 



Ash constituents 42.34 



Total nitrogen 3.58 



