BULLETIN OF THE BUSSEY INSTITUTION. 13 
Of matters valuable as manure the specimen contained : — 
Soluble phosphoric acid . ° Hh aes F2F 
Insoluble ~ : : ‘ F 1.938 
Total 1 : Sane ee 11.05% 
MCN les 6 4 et et we ge TS, & 2.12% 
There was sand, &c., to the amount of : . ‘ : * 1.56% 
BONE-MEALS AND BONE-BLACKS. 
XII. Coarsely ground Bone, bought April, 1871, of J. Breck and Son, 
Boston. ; 
Moisture. wee & : - 8.36% 
Volatile matter (beside moisture) .. 32.29 
RR ees ie wo, 59.BB 
100.00 
The sample contained : — : 
22.05% of phosphoric acid, and 
2.07 of sand. 
XIII. Fine Bone-Meal, bought April, 1871, of J. Breck and Son, 
Boston. 
Moisture q - 7 ‘ 7 e 6,707 
Volatile matter (beside moisture) . 19:29 
Ash. : ° ° ‘ 7 . 74.01 
100.00 
The sample contained : — 
24.80% of phosphoric acid, and 
1.48 of sand. | 
XIV. Bone-Meal, bought April, 1871, of William L. Bradley, 
Boston. 
Moisture . . sag de : ; air Oeba°/e 
Volatile matter (beside moisture) . 38.47 
Ash ° . * . . . . 56.00 
100.00 
The sample contained : — 
_ 19.40% of phosphoric acid, and 
1.62 of sand. 
