1890.] 



PUBLIC DOCUMENT — No. 33. 



2Q] 



5. Analyses, etc. — Continued. 



Dissolved Bone-black. 

 [Sent on from Amherst, Mass.] 



Bone Coal. 

 [Sent on by Cbas. S. Young, Wellesley Hills, Mass.] 



Moisture at 100° C, 



Ash, 



Total phosi^horic acid, 



Soluble phosphoric acid (8 cents per jiound). 

 Reverted phosphoric acid (J\ cents per 2)ound) , 

 Insoluble phosphoric acid (5 cents per jDound), 



Insoluble matter, 



Valuation per ton, 



Per Cent. 



18 16 



72.24 



25.58 



.38 



5.18 



20.02 



.69 



S28 JO 



