334 



BOARD OF AGRICULTURE. 



Valuation per ton of two thousand pounds : 



102.0 pounds of soluble phosphoric acid 

 54.0 pounds of reverted phosphoric acid 

 30.0 pounds of insoluble phosphoric acid 

 71.6 pounds of nitrogen 

 46.8 pounds of potassium oxide 



XXV. 



International Fertilizer. 



$35 10 



(A. M. Groding, Stow, Mass.; collected of Charles Brown, Stow, Mass.) 



Moisture at 100° C. 

 Organic and volatile matter 

 Ash constituents 

 Nitrogen 

 Potassium oxide 

 Soluble phosphoric acid . 

 Reverted phosphoric acid 

 Insoluble phosphoric acid 

 Insoluble matter, sand, &c. 



Per cent. 



19.14 



41.75 



58.25 



1.90 



5.22 



.31 



2.30 



132 



20.70 



Valuation per ton of two thousand pounds 



38.0 pounds of nitrogen 

 104.4 pounds of potassium oxide . 

 6.2 pounds of soluble phosphoric acid 

 46.0 pounds of reverted phosphoric acid 

 26.4 pounds of insoluble phosphoric acid 



XXVI. 



International Fertilizer. 



$18 26 



(A. M. Goding, Stow, Mass.; collected of W. F. Sawyer, Harvard, Mass.) 



Per cent. 

 4.00 

 35.02 

 64.98 

 2.57 

 7.92 

 .25 

 1.77 

 1.S0 

 21.52 



Moisture at 100° C. 

 Organic and volatile matter 

 Ash constituents 

 Nitrogen 



Potassium oxide . . 

 Soluble phosphoric acid . 

 Reverted phosphoric acid 

 Insoluble phosphoric acid 

 Insoluble matter, sand, &c. 



