28 
The Best Means of applying Liquid Manure. 
rape-dust, or any other manure necessary to bring the land up 
to the pitch of fertility required to enable it to be self-supporting. 
This tank must be at least double the size of the collecting-tank, 
so as to allow water for dilution to be mixed with the manures 
that are to be applied during the day : — 
Table II. 
Quantity 
in 
Gallons. 
Depth 
of 
Tank. 
Diameter 
of 
Tank. 
Depth 
of 
Exca- 
vation. 
Diameter 
of 
Excava- 
tion. 
Cubic 
Yards of 
Excava- 
tion. 
Staunch- 
ing Clay 
in 
Cubic 
Yards. 
Bricks 
for Walls, 
Dome, and 
Bottom ; 
Stimdard 
Size. 
Total Cost. 
Feet. 
Ft. 
In. 
Feet. 
Ft. 
In. 
£. 
s. 
(J. 
2,269 
10 
6 
10 
12 
9 
0 
28 
^3 
4,200 
8 
6 
2 
4,538 
) > 
9 
8 
11 
10 
49 
8 
6,100 
12 
4 
0 
6,807 
} » 
11 
10 
) 9 
14 
0 
68 
lOi 
7,900 
15 
17 
4 
9,076 
13 
8 
15 
10 
87 
12A 
9,600 
19 
7 
0 
1) ,345 
) 1 
15 
3 
17 
106 
14 
11,000 
22 
5 
4 
13,614 
16 
8 
18 
10 
124 
15| 
12,400 
25 
3 
15,883 
) * 
18 
0 
> > 
20 
2 
140 
1'^ 
13,700 
27 
17 
0 
18,152 
> 1 
19 
4 
21 
6 
161 
19 
15,100 
30 
16 
.3 
20,421 
J > 
20 
22 
180 
20| 
16,500 
33 
15 
0 
22,090 
J * 
21 
:: 
23 
9 
199 
22 
17,900 
36 
13 
9 
Note. — The depths are measured from the spring of the bottom arch. 
Twenty-five feet I consider a maximum diameter for a 9-inch 
wall ; and it will be as little expense to construct two tanks with 
9-inch walls, as one large one with 14-inch walls ; but the 
capacity can be increased by making the tanks deeper. 
The average quantity of urine evacuated daily by cattle when 
fed on Italian ryegrass, good turnips, or other succulent food, is 
about one gallon for every 5 score that the animal will weigh 
when fit for the butcher, after five months' feeding, and the water 
required to swill the solid manure into the tank will be double 
that quantity; therefore, taking into account the urine, solid 
excrement, and water used for swilling, 27 gallons a day is a 
fair average per head, for which tank-room must be provided. 
The average produce of an acre of Italian ryegrass will give a 
day's food to about 180 head of cattle, which, according to the 
preceding estimate, will yield 4800 gallons of liquid manure, — 
a quantity that, if applied the same evening to the same acre, 
will produce grass ready to cut again in from three to five 
weeks. Taking the longer date, we sliall need 35 acres to keep 
up a full supply for the 180 head of cattle ; and the size of the 
collecting-tanks required will be 138 gallons for every acre of 
Italian rye-grass grown. But as by this system the grass will 
be sure to come to the scythe every four weeks (at all events 
during the summer months), there will be food sufficient for a 
])roportionally greater number of cattle, and the said tanks ought 
to be at least large enough to hold 175 gallons for every acre 
