370 



BOARD OF AGRICULTURE. 



Stockbridge Potatoes Manure. 



(Collected of Rice Bros., Wornester, Mass.) 



Per cent. 



Moisture, . . . 19.23 



Organic and volatile matter, 51.54 



Ash constituents, 48.46 



Total phosjjhoric acid, . . . . . . . 9 34 



Soluble phosphoric acid, 5.53 



Reverted phosphoric acid, 1.05 



Insoluble phosphoric acid, 2.94 



Nitrogen, 2.59 



Potassium oxide, 5.41 



Insoluble matter, 3.95 



Valuation per ton of two thousand pounds : — 



110 6 pounds of soluble phosphoric acid, . 

 21.0 pounds of reverted phosphoi'ic acid, 

 58.8 pounds of insoluble phosphoric acid, 

 51.8 pounds of nitrogen, .... 



108.2 pounds of potassium oxide. 



$13 83 



1 89 



3 53 



12 43 



5 41 



$37 09 



Nitrogenous Phosphate. 



(O. H. Leach & Co., Boston, Mass.) 



Per cent. 



Moisture, 18.08 



Organic and volatile matter, 49.40 



Ash constituents, 50.60 



Total phosphoric acid, 9.26 



Soluble phosphoric acid, 5.95 



Reverted phosphoric acid, 2.25 



Insoluble phosphoric acid, 1.06 



Nitrogen, 2.44 



Potassium oxide, 0.91 



Insoluble matter, 63 



Valuation per ton of two thousand pounds : — 



119.0 pounds of soluble phosphoric acid, 

 45.0 pounds of reverted phosphoric acid, 

 21.2 pounds of insoluble phosphoric acid, 

 48.8 pounds of nitrogen, .... 

 18.2 pounds of pota.-sium oxide, 



32 8i 



