342 



BOARD OF AGRICULTURE. 



xn. 



Matfield's Lawn- Dresser. 

 (G. W. Guy, Boston, Mass.) 



Valuation per ton of two thousand pounds : — 



34.8 pounds of nitrogen . 

 55 pounds of soluble phosphoric acid . 

 1.4 pound of reverted plipsphoric acid . 

 33.6 pomids of insoluble phosphoric acid 

 143.2 pounds of potassium oxide 



xni. 



Russel Coe^s Ammoniated Superphosphate. 

 (Messrs. Whittemore Brothers, Boston, Mass.) 



Organic and volatile matter 

 Ash constituents 

 Moisture at 100° C. . 

 Total nitrogen .... 

 Total phosphoric acid 

 Phosphoric acid soluble in water 

 Reverted phosphoric acid . 

 Insoluble phosphoric acid 

 Insoluble matter, sand, &c. 



$6 96 



6 88 



13 



2 02 



8 59 



24 58 



Per cent. 



51.52 



48.48 



20.91 



2.40 



17.31 



4.61 



3.59 



9.11 



Valuation per ton of two thousand pounds : — 



48 pounds of nitrogen . . 

 92.2 pounds of soluble phosphoric acid . 

 71.8 pounds of reverted phosphoric acid . 

 182.2 pounds of insoluble phosphoric acid 



XIV. 



Stoclcbridge Manures; Hungarian Grass. 

 (Messrs. W. H. Bowker & Co., Boston, Mass.) 



Moistm-e lost at 100° C 



Total nitrogen 



$38 52 



Per cent. 



15.92 

 7.92 



