366 



BOARD OF AGRICULTURE. 



Botvker''s Hill and Drill Phosphate. 



(Collected of C. T. Brown, Northampton, Mass.) 



Moistui'e, .... 

 Organic and volatile matter. 

 Ash constituents, 

 Total phosphoric acid, 

 Soluble phosphoric acid, . 

 Reverted phosphoric acid, 

 Insoluble phosphoric acid, 

 Nitrogen, . . . . 

 Insoluble matter, 



Per cent. 



16.83 



52.57 



47.43 



12.55 



7.54 



2.65 



2.36 



2.88 



5 26 



Valuation per ton of two thousand pounds : — 



150.8 pounds of soluble phosphoric acid, 

 53.0 pounds of reverted phosphoric acid, 

 47.2 pounds of insoluble phosphoric acid, 

 67.6 pounds of nitrogen, 



27 



Corn Fertilizer. 



(Mapes & Co., New York; collected by Messrs. Newton & Fuller, Springfield, MassO 



Moisture, .... 

 Organic and volatile matter, 

 Ash constituents, 

 Total phosphoric acid, 

 Soluble phosphoric acid, . 

 Reverted phosphoi'ic acid, 

 Insoluble phosphoric acid. 

 Nitrogen, .... 

 Potassium oxide. 

 Insoluble matter. 



Per cent. 



12.15 



43.45 



56.55 



12.05 



6.30 



4.63 



1.12 



6.29 



8.80 



6.95 



Valuation per ton of two thousand pounds : — 



126.0 pounds of soluble phosphoric acid, 

 92.6 pounds of revei'ted phosphoric acid, 

 22.4 pounds of insoluble phosphoric acid, 

 105.8 pounds of nitrogen, 

 176 pounds of potassium oxide, 



$59 61 



