458 



BOARD OF AGRICULTURE. 



leather refuse which has been treated with lime, no valuation 

 is stated, as it must be valued by testing in the field. 



Ground Horn. 



[Of Perkins & Bradstreet, Dan vers, Mass. Sent on for examination Ij J. J. H. 

 Gregory, Marbleliead, Mass.] 



Moisture at 100° C, . 

 Organic and volatile matter, 



Ash, 



Phosphoric acid, 



Nitrogen in organic matter, 



Valuation per 2,000 Pounds. 

 270.6 lbs. nitrogen at 10 cents, 

 27.2 lbs. phosphoric acid at 4| cents 



10.00 



95.00 



5 00 



1.36 



13.53 



$27 06 

 1 22 



$28 28 



The inferior mechanical condition of the article advises the 

 low valuation of the nitrogen present. 



BoneblacJc. 



[I. Collected of B. F. Bridges, South Deerfleld, Mass.] 



Boneblack refuse, in a fine ground condition may be pro- 

 fitably used for composting. 



Ground South Carolina Phofiphate, 



[Sent on by the Ashby Farmers' Club, Ashby, Mass.] 



Moisture at 100° C, . 

 Total phosi)lioric acid, 

 Insoluble matter, 



Per cent. 



1.90 



27.13 



11.90 



Valuation per 2,000 lbs., . 



$12 21 



