232 



BOARD OF AGRICULTURE. 



Reverted phosphoric acid 

 Insoluble phosphoric acid 

 Total nitrogen 

 Potassium oxide 

 Insoluble matter . 



Valuation per ton of two thousand pounds : — 



16 pounds of soluble phosphoric acid 

 118.2 pounds of reverted phosphoric acid 

 134.4 pounds of insoluble phosphoric acid 

 105 pounds of nitrogen 

 105.2 pounds of potassium oxide . 



$46 37 



Animal Fertilizer. 



(Messrs. L. B. Darling & Co.; collected of Messrs. Parker & Oannet, 



Boston, Mass.) 



IMoisture lost at 100° C. 

 Organic and volatile matter 

 Ash constituents . 

 Total phosphoric acid . 

 Soluble phosphoric acid . 

 Reverted phosphoric acid 

 Insoluble phosphoric acid 

 Total nitrogen 

 Potassium oxide . 

 Insoluble matter . 



Valuation per ton of two thousand pounds : — 



24.8 pounds of soluble phosphoric acid 

 45.2 pounds of reverted phosphoric acid 



152.8 pounds of insoluble phosphoric acid 



101.4 pounds of nitrogen 



115.8 pounds of potassium oxide . 



Per cent. 



lO.GO 



55.73 



42.27 



11.14 



1.24 



2.26 



7.64 



5.07 



5.79 



2.27 



S2 98 



4 07 

 9 17 



.20 28 



5 21 



S41 71 



Ammoniated Superphosphates. 

 I. 



J. M. Davis's Bone Phosphate. 

 (E. Waldron, New Bedford, Mass.) 



Moisture lost at 100° C. 



Organic and volatile matter 



Ash constituents ....... 



Total phosphoric acid 



Per cent. 



18.93 



49.44 



50.56 



8.77 



