272 



BOARD OF AGRICULTURE. 



Valuation per ton of 2,000 pounds. 



114.00 pounds of soluble phosphoric acid, 



12.80 " of reduced 

 133.00 " of insoluble 



46.80 " of nitrogen, 

 7.00 " of potassium oxide, . 



$14 25 



1 15 



7 98 



9 83 



43 



$33 54 



VIII. — Bay State Superphosphate of J. A. Tucker, Esq., Boston. 

 (Collected of Mr. H. A. Parker, East Pepperell, Mass.) 



Valuation per ton of 2,000 pounds. 



130.00 pounds of soluble phosphoric acid, $16 35 



110.20 " of reduced " " 9 92 



43.80 " of insoluble " " 2 63 



56.00 " of nitrogen, 11 76 



$40 66 



IX. — Original Coe Superphosphate of Bradley Fertilizing Co., 



Boston. 



(Collected of Mr. A. H. Parker, Pepperell, Mass.) 



Total phosphoric acid, 13.70 per cent. 



Soluble " " 7.81 



Reduced " " 0.73 



Insoluble " " 5.16 



Nitrogen, 2.11 " 



Moisture, 20.37 " 



Valuation per ton of 2,000 pounds. 



156.20 pounds of soluble phosphoric acid, 

 14.60 " of reduced " " 



103.20 " of insoluble " 

 42.20 " of nitrogen, 



$19 53 

 1 32 

 6 19 

 8 86 



$35 90 



