The Best Means of applying Liquid Manure. 27 
2^-inch hose ; and 36 gallons, if 2-inch hose ; the speed the 
machine travels at, and the width taken in, determining the 
quantity applied per acre. The accompanying figures give the 
plan of a machine with single drum, to coil only 120 yards 
of hose ; but there is no difficulty in making the drum double, so 
that more than double that quantity can be coiled up. It takes 
224 yards to a ton when full of liquid manure, and this would 
enable the metallic portable branch pipes to be ten chains apart 
on the farm ; but this distance can be increased or diminished 
to meet the shape of the farm and of its fields. 
I add a series of tables giving further information. Table I. 
gives the gallons, cubic feet, and tons weight of liquid manure 
corresponding to dressings of tenths of an inch in depth over an 
acre of land, assuming the sp. gr. of the liquid to be 1"13 : it 
also gives the diameter of circular tanks 10 feet deep which 
would hold the quantity specified : — 
Table I. 
"Depth 
over the Surface. 
Gallons. 
Cubic Feet. 
Tons. 
Diameter of Tank. 
Feet. 
Inches. 
• 1 of an inch. 
2,269 
364 
11-34 
6 
10 
•2 
4,538 
729 
22'68 
9 
8 
•3 
6,807 
1093 
34- 
11 
10 
•4 
9,076 
1458 
45*36 
13 
8 
•5 
1 1 , 345 
1822 
56-72 
15 
3 
•6 
13,614 
2187 
68-1 
16 
8 
•7 
15,883 
2551 
79-4 
18 
0 
•8 
18,152 
2916 
90-75 
19 
3 
•9 
20,421 
328 1 
102-1 
20 
6 
!• inch .. .. 
22,690 
3645 
113-4 
21 
7 
Note. — The depth of the tanks is assumed 1o be 10 feet from the springing of 
the invert or bottom arch. 
Table II. shows the cost of tanks of different sizes in cubic 
yards of excavation, the minimum cost being Ad. a yard ; also 
the quantity and cost of clay (at \s. a yard) required to pack 4 
inches thick behind the brick-work ; and the number of bricks 
required to a 9-inch wall, 4-inch bottom, and 9- inch arch-cover, 
leaving a man-hole of 3i feet in diameter in the middle of the 
arch. The cost of bricks, lime, sand, laying and staunching with 
clay, will be about 365. per thousand bricks ; but the price paid 
for excavation will vary with the hardness of the subsoil, and 
with the presence of quicksand, rock, or other impediments to 
its execution. The bottom should be concave, the segment of 
a sphere, the radius of which is equal to the diameter of the 
tank, and the dome or cover should be of the same shape. 
There should also be a mixing-tank, where the liquid manure 
is mixed with guano, superphosphate of lime, nitrate of soda. 
