BULLETIN OF THE BUSSEY INSTITUTION. 15 
XIX. Dried Fish-Scrap, as produced by the drying apparatus afore- 
said, obtained at New Haven by Dr. George Derby, December, 1871. 
Volatile matter and moisture 
Pinan att y 
Ash : : ‘ ‘ : 37.29 
100,00 
The sample contained : — 
7.28% of phosphoric acid, 
5.50 of nitrogen, and 
0.83 of sand. 
XX. Dried Tankings (slaughter-house refuse), as produced by the 
drying apparatus aforesaid, obtained at New Haven, December, 1871, 
_by Dr. George Derby, 
Volatile matter and moisture : . 89.95% 
Ash - F ; : 10.05 
The sample contained : — 
100.00 
2.56% of phosphoric acid, 
7.25 of nitrogen, and 
4.02 of sand. 
XXI. Blood, Bone, and Meat-Dust Fertilizer, from Messrs. North, 
Meriam, & Co., East Cambridge, obtained April, 1872. 
Moisture and volatile matter 
Ph S66, 78 
Ash : : ‘ , 43.28 
100,00 
The sample contained : — 
16.58% of phosphoric acid, and 
3.80 of nitrogen. 
XXII. Blood, Bone, and Meat-Dust Fertilizer, from Messrs. North, 
Meriam, & Co., East Cambridge, obtained September, 1872. 
Moisture and volatile matter : ~ 64.527 
Ash : : ; 
: 35.48 
The sample contained : — 
100,00 
12.08% of phosphoric acid, 
4.89 of nitrogen. 
