1890.] 



PUBLIC DOCUMENT — No. 33. 



267 



5. Analyses, etc. — Continued. 



Dissolved Bone-black. 

 [Sent on from Amherst, Mass.] 



Bone Coal. 

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



Moisture at 100° C, 



Ash, 



Total phosphoric acid, 



Soluble i)hosi)horic acid (8 cents i^er i^ound), 

 Reverted phosphoric acid (7^ cents per i)ound). 

 Insoluble i)liosi)horic acid (5 cents per pound), 



Insoluble matter, 



Valuation per ton, . ' 



Per Cent. 

 18 16 



72,24 



25.58 



.38 



5.18 



20.02 



.69 



$28 40 



