328 



BOARD OF AGRICULTURE. 



xn. 



Bowker's Lawn-Dressing. 



(Bowker Fertilizer Co., Boston, Mass 



atnpton. 



Moisture at 100° C. 

 Organic and volatile matter 

 Ash constituents 

 Soluble phosphoric acid . 

 Insoluble phosphoric acid 

 Nitrogen . . . 



Potassium oxide 

 Sand, &c. 



; collected of H. C. Cotnlns, North- 

 Mass.) 



Per cent. 



6.30 



70.75 



29.25 



5.62 



.44 



5.66 



5.57 



.25 



Valuation per ton of two thousand pounds : — 



112.4 pounds of soluble phosphoric acid . 

 8.8 pounds of insoluble phosphoric acid 

 113.2 pounds of nitrogen .... 



111.4 pounds of potassium oxide . 



xm. 



Mitchells' Dissolved Bone Superphosphate. 



$13 49 



53 



27 17 



4 46 



$45 65 



(Providence, R.I. ; collected of Messrs. J. & J. A. Rice, "Worcester, Mass.) 



Moisture at 100° C. 

 Organic and volatile matter 

 Ash constituents 

 Nitrogen 



Soluble phosphoric acid . 

 Reverted phosphoric acid 

 Insoluble phosphoric acid 

 Insoluble matter, sand, &c. 



Per cent. 



20.99 

 58.24 

 41.76 

 1.52 

 6.42 

 1.16 

 1.02 

 6.08 



Valuation per ton of two thousand pounds : — 



30.4 pounds of nitrogen $6 08 



128.4 pounds of soluble phosphoric acid . . 15 41 



23.2 pounds of reverted phosphoric acid . 2 09 



20.4 pounds of insoluble phosphoric acid . 1 23 



$21 82 



