346 



BOARD OF AGRICULTURE. 



Valuation per ton of two thousand pounds : — 



95.6 pounds of soluble phosphoric acid . . . $11 95 



100.6 pounds of reverted phosphoric acid . . . 9 05 



43.6 pounds of insoluble phosphoric acid . . . 2 02 



75.8 pounds of nitrogen . . . . . . 18 19 



96.8 pounds of potassium oxide . . . . . 4 84 



$46 65 



Djried Ground Fish. 



(Pri'ston Fertilizer Co. ; collected of Messrs. Spaulding & Co., Northampton, Mass.) 



I. 



Moisture 



Organic and volatile matter 



Asli constituents 



Total phosphoric acid 



Nitrogen 



Potassium oxide 



Insoluble matter 



Valuation per ton of two thousand pounds 



16 pounds of potassium oxide 

 166.4 2:)ounds of phosphoi'ic acid 

 84.4 pounds of nitrogen 



Per cent. 



27.20 



64.65 



35.35 



8.32 



4.22 



.80 



1.74 



10 80 



9 98 



20 26 



$31 04 



II. 



Dried Fish. 



Moisture at 100° C. 

 Organic and volatile matter 

 Ash constituents 

 Total phosphoric acid 

 Nitrogen 

 Potassium oxide 

 Insoluble matter 



Valuation per ton of two thousand pounds 



y pounds of potassium oxide . 

 178 pounds of phosphoric acid . 

 117.2 pounds of nitrogen .... 



$39 26 



