256 



BOARD OF AGRICULTURE. 



in an average sample of both to be 22 cents. A well- 

 prepared animal dust of the above composition, at $40 

 per ton, deserves a liberal patronage as an efficient, rich, 

 nitrogenous phosphate. For speedy action it needs, how- 

 ever, a previous composting for a month or two. 



II. — Acidulated Brighton Animal Dust. 



(Messrs. Hovey & Co., Boston.) 



Organic animal and volatile matter, 



Ash constituents, . 



Total phosphoric acid, 



Soluble 



Reverted " " 



Insoluble " " 



Total nitrogen, 



Moisture, 



76.30 per cent. 

 23.70 



8.45 



6.72 



1.13 



0.60 



6.00 

 15.75 



This preparation differs from the previous ones in that it 

 contains its main amount of phosphoric acid in a soluble form, 

 and is thus better fit to meet the immediate wants of the 

 crops. Its commercial value would be from $48 to $50 per 

 ton, allowing ordinary rates of valuation in our market. It 

 is offered at $45 per ton at the Brighton railroad depot. 



Animal Fertilizer (Tankage). 



Volatile and organic animal matter, 65.40 



Ash constituents, 34.60 



Phosphoric acid in ash, 14.60 



Nitrogen in animal matter, 7.48 



Moisture (at 100° C), 5.46 



This material consisted of the refuse meat and bone mass 

 from a rendering establishment in Chicago. I enter the 

 results here on record for the same reason that some other 

 analytical statements of fertilizing substances have been 

 reported in the present report ; namely, to render the agricult- 

 ural community more and more familiar with the character of 

 the various articles, particularly refuse materials, offered for 

 manurial purposes. Many of them may be secured at low 

 rates. Always buy with reference to composition ! 



