856 



BOARD OF AGRICULTURE. 



Valuation per ton of two thousand pounds 



13 pounds of soluble phosphoric acid 

 36 pounds of reverted phosphoric acid 

 12.8 pounds of insoluble phosphoric acid 

 67.4 pounds of nitrogen .... 

 165 pounds of potassium oxide . 



liussel Coe's Ammoniated Superphosphate, 

 (Collected of Rice Brothers, Worcester, Mass.) 



Moisture 



Organic and volatile matter 

 Ash constituents . 

 Total phosphoric acid 

 Soluble phosphoric acid . 

 Reverted phosphoric acid 

 Insoluble phosphoi'ic acid 

 Nitrogen 

 Insoluble matter 



Valuation per ton of two thousand pounds 



9.8 pounds of soluble phosphoric acid 

 229 pounds of reverted phosphoric acid 

 62 pounds of insoluble phosjihoric acid 

 48.4 pounds of nitrogen .... 



Bradley's XL Ammoniated SuperphospJiate. 

 (From David M.iyhew, Esq., North Tisbury, Mass.) 



Moisture 



Organic and volatile matter 

 Ash constituents . 

 Total phosphoric acid 

 Soluble phosphoric acid . 

 Ileverted phosphoric acid 

 Insoluble phosphoric acid 

 Nitrogen 

 Potassium oxide 

 Insoluble matter . 



Valuation per ton of two thousand pounds 



100 pounds of soluble phosphoric acid 



82 pounds of reverted phosphoric acid 



68 pounds of insoluble phosphoric acid 



47.2 pounds of nitrogen 



41.4 pounds of potassium oxide . 



^30 06 



Per cent. 



24.90 



53.48 



46.52 



15.04 



.49 



11.45 



3.10 



2.42 



6 33 



U 22 



20 61 



3 72 



11 62 



$37 17 



Per cent. 



19.20 



45.48 



54.52 



12.50 



5.00 



4.10 



3.40 



2.36 



2.07 



3.37 



i!12 50 

 7 38 

 4 08 



11 33 

 2 07 



$37 36 



