215 
it is kept tight and dry. From various experiments with similar results, 
the four following will illustrate the efficacy of this manure: 
1. Guano, top-dressing, 1 cwt. to the acre. 
Undressed, same field.. 
2. Gi.ano, top-dressing, 3cwt. per acre... 
Undressed. 
3. Guano, top-dressing, 2cwt. per acre... 
Undressed.. 
4. Guano, top-dressing, cwt. per acre 
Undressed.. 
48 bushels. 
27 „ 
30 bush. 40 lbs. 
24 „ 56 
32 
18 
45 
29 
20 
09 
The effect of special manures, is well illustrated by the following ana¬ 
lyses, given by Hermstadt, which were prepared with great care and 
are probably correct : 
1 
Manures. 
Return. 
Water. 
Gluten. 
Albumen. 
Starch. 
Sugar. 
j Guano. 
Fatty Oil. 
Soluble 
Phosphates, 
c. 
Husk and 
Bran. 
Ox Blood. 
14 fold 
4.3 
34.2 
1.0 
41.3 
1.9 
1.8 
0.9 
0.4 
13.9 
99.8 
Nighi Soil. 
14 „ 
4.2 
33.9 
1.3 
41.4 
1.6 
1.6 
1.1 
0.6 
14.0 
99.7 
Sheep’s dung. 
12 „ 
42 
32.9 
1.3 
42.8 
1.5 
1.5 
1.0 
0.7 
13.8 
99.7 
Goat’s dung.. 
12 „ 
4.3 
32.9 
1.3 
42.4 
15 
1.5 
0.9 
0.7 
14.2 
99.7 
Human urine. 
1° 
1 ,* ,, 
4.2 
35.1 
1.4 
39.9 
1.4 
1.6 
1.0 
0.9 
14.2 
99.7 
Horse dung. 
10 „ 
4.3 
13.7 
1.1 
61.6 
1.6 
1.6 
1.0 
0.6 
14.0 
99.6 
Pigeon dung. 
0 „ 
4.3 
12.2 
0.9 
63.2 
1.9 
1.9 
0.9 
0.5 
14.0 
99.8 
Cow dung. 
7 „ 
4.2 
12.0 
1.0 
62.3 
1.9 
1.9 
1.0 
0.5 
14.9 
99.7 
Vegetable Manure. 
5 „ 
4.2 
9.6 
0.8 
65.9 
1.9 
1 6 
1.0 
0.5 
14.0 
99.8 
Un manured.... 
3 
4,2 
9.2 
0.7 
66.6 
i 
1.9 
1.8 
1.0 
0.3 
14.0 
99.7 
These experiments are interesting illustrations of a theory, but can 
hardly become of practical value. They can rarely be repeated on a 
large scale, especially those of blood and urine, from the impossibility 
of obtaining a supply, and the inconvenience of application. 
The manures of animals change greatly from the manner in which 
they are kept, their food, and the stage of decomposition at which it has 
arrived. 
The foregoing are facts relating to the wheat plant, wherever grown. 
They possess little novelty, being the results of careful and published 
observation since it has been directed to that object. Such a subject it i3 
difficult to enliven with the charm of originality. The length to which 
this essay has already extended, is almost preclusive of that particular 
remark upon wheat culture in Wisconsin, to which I originally intended 
% 
