14 BULLETIN OF THE BUSSEY INSTITUTION. 
XV. Coarse Bone-Black, obtained February, 1872, from Messrs. 
C. O. Whitmore and Sons, Boston. 
Moisture ' . : . : . 9.94% 
Carbon . : ; ; : ; 10.40 
Ash . : A : 5 : . 79.66 
100.00 
The sample contained : — 
32.08% of phosphoric ‘acid, and 
0.49 of sand. 
XVI. Fine spent Bone-Black,. obtained February, 1872, from C. O. 
Whitmore and Sons, Boston. 
Moisture’. ; 4 ; ‘ . Saas 
Carbon a ae Se ee 5.80 
, Ash oe. ; ; ; : ‘ . 84.41 
; 100.00 
The sample contained : — 
30.19% of phosphoric acid, and 
2.73 of sand. 
NITROGENIZED MANURES. 
XVII. Blood Flour, procured January, 1872, from the Manhattan 
Manufacturing and Fertilizing Company of New York, by Mr. Gardner 
Brewer, Boston. | 
Volatile matter and moisture f . 95.02% 
Ash : ; ‘ : ; ‘ 4.98 
. 100.00 
The sample contained : — 
0.80% of phosphoric acid, 
11.22 of nitrogen, and 
0.31 of sand. 
XVIII. Dried Blood, as produced by a drying apparatus similar to 
the one employed by Messrs. North, Meriam, & Co., obtained De- 
cember, 1871, at New Haven, by Dr. George Derby, Secretary of the 
Massachusetts State Board of Health. 
The sample contained : — 
10.38% of nitrogen. 
