34 
BULLETIN 2, U. S. DEPARTMENT OF AGRICULTURE. 
The following table contains a number of analyses of fish fertilizers, 
reported by Atwater : 1 
Table X. — Analysis of commercial fish scrap, quoted from AUvater. 
Kind of fertilizer. 
Moisture. 
Organic 
matter. 
Ash. 
Phos- 
phoric 
acid. 
Nitrogen. 
Ammonia 
equiva- 
lent to 
nitrogen. 
Oil. 
DRY GROUND FISH. 
Ground fish, G. W. Miles 
Fish guano, G. W. Miles 
Per cent. 
18.74 
21.96 
8.63 
Per cent. 
61.82 
50.99 
71.79 
Per cent. 
19.44 
27.05 
19.41 
16.37 
22.35 
22.23 
20.75 
22. 58 
20.41 
23. 58 
24.95 
19.92 
20.17 
Per cent. 
7.65 
8.66 
7.74 
6.17 
7.90 
6.67 
7.21 
7.55 
S.ll 
» 7.09 
10.51 
7.10 
7.12 
Per cent. 
8.06 
6.07 
8.84 
8.80 
7.88 
7.50 
7.38 
7.96 
8.25 
4.11 
8.60 
8.13 
7.46 
7.10 
7.79 
7.65 
5.33 
5.49 
3.63 
Per cent. 
9.78 
7.36 
10.73 
10.68 
9.56 
9.11 
8.97 
9.66 
10.00 
4.99 
10.44 
9.86 
9.05 
8.61 
9.46 
9.28 
6.47 
6.66 
4.41 
Per cent. 
6.71 
Charles Island guano, G. W. 
Miles 
6.35 
Do 
6.34 
14.64 
10.85 
13.45 
8.22 
36.53 
11.04 
9.37 
11.00 
7.74 
7.59 
71.31 
7.33 
Dry ground fish, Quinnipac 
7.68 
Do 
68.40 
63.97 
Do 
6.63 
Do ... 
8.94 
Acidulated fish, Quinnipac 
Fertilizer Co. (dried fish scrap) 
"Dry fish," Green Bros 
39.89 
64.01 
3.93 
"Dried fish'' 
"Dry fish" 
8.29 
" Dry fish " 
"Dry fish" (half dry fish scrap). 
40.95 
25.10 
56.83 
43.06 
56.17 
15.99 
18.73 
6.23 
7.49 
Fish scrap, "half dry" (crude 
11.99 
1 Per cent soluble in water, 1.76; per cent soluble in ammonium citrate, 2.47. 
Additional analyses of fish fertilizers, reported by Johnson, 2 are 
quoted in the subjoined table: 
Table XL — Analysis of commercial fish scrap, quoted from Johnson. 
Kind of fertilizer. 
Moisture. 
Nitrogen. 
Nitrogen 
in water- 
free fish. 
Oil. 
Per cent. 
10.75 
Per cent. 
8.52 
8.21 
7.35 
7.30 
9.26 
8.77 
7.98 
8.04 
8.51 
8.43 
7.77 
8.78 
Per cent. 
9.54 
Per cent. 
Do 
Dry ground fish scrap: 
Old, 1876 
16.59 
23.95 
S.S1 
9.59 
New, 1877 
Do 
Do 
19.57 
9.03 
11.38 
10. 74 
9.76 
11.19 
9.92 
8. S3 
9.60 
9.44 
8.61 
9.88 
Do 
Do 
Do 
Do 
8.94 
Do 
7.30 
13.66 
8.24 
9.36 
8.12 
Fish by Adamson's process 
4.91 
3.67 
11.45 
10. 7S 
10.74 
10.24 
11.32 
11.15 
11.56 
2.07 
Do 
Fish by GoodakVs process 
4.64 
NEW ANALYSES. 
A small number of samples of fish scrap were taken for the most 
part in person by the writer during the fall of 1912. No attempt 
was made to obtain a complete series from all the plants visited. 
1 Atwater. W. O., Conn. Asrr. Expt. Sta. Kept., 1876. p. 63. 
2 Conn. Agr. Expt. Sta. Kept., 1877, 41. 
