EXPERIMENT STATION. 



719 



Ground Bones. 



[Sent on from "Westford, Mass.] 



]\roistiire at 100° C, 



Total phosphoric acid, 



Soluble and reverted phosphoric acid (7^ cents 

 per pound) , 



Insoluble phosphoric acid (5 cents per pound), . 



Nitrogen (15 cents per pound), .... 



Insoluble matter, 



Valuation per 2,000 pounds, .... 



$23 90 



The mechanical condition of botli samples was much the 

 same ; the valuation above given has been for this reason 

 the same. The desirability of having ground bones sold 

 only by a guaranteed composition finds an additional strong 

 illustration in this case. 



Ground Bone. 



[Sent on from Concord, Mass.] 



Per cent. 



]\Ioisture at 100^ C, 3.05 



Total phosphoric acid, 17.72 



Reverted phosphoric acid (7 J cents per pound), . . . 5.55 



Insoluble phosphoric acid (4 cents per pound), . . . 12.17 



Xitrogen (15 cents iier poimd), 5.15 



Insoluble matter, 1.19 



Valuation per 2,000 pounds, $33 52 



Steamed Bone and Meat. 



[Sent on from Fitchburg, Mass.] 



INIoisture at 100^ C, . 



Total phosphoric acid (5 cents per pound 



Soluble phosphoric acid, . 



Reverted phosphoric acid, . 



Insoluble jDhosphoric acid, . 



Nitrogen (15 cents per pound), 



Insoluble matter, .... 



Valuation per 2,000 poiuids. 



Per cent. 



4.71 

 20.28 

 0.56 

 4.54 

 14.18 

 6.37 

 1.19 



$35 25 



