" " " pressed | 46 | 2300
5.|Horse-manure from pig cellar | 50 | 2500
6.| " " " " " pressed | 72 | 3600
7.|Pig-manure | 57 | 2850
8.| " " pressed | 75 | 3750
9.|Pig-manure and dry earth | 98 | 4900
10.|Sheep-manure from open shed | 42 | 2100
11.| " " " " " pressed | 65 | 3250
12.|Sheep-manure from closed shed | 28 | 1400
13.| " " " " " pressed | 38 | 1900
14.|Fresh cow-dung, free from straw | 87 | 4350
15.|Hen-manure | 34 | 1700
16.| " " pressed | 48 | 2400
---+--------------------------------------------+-------+--------

"In buying manure," said the Deacon, "it makes quite a difference
whether the load is trod down solid or thrown loosely into the box.
A load of fresh horse-manure, when trod down, weighs half as much again
as when thrown in loose."

"A load of horse-manure," said Charley, "after it has been used for
bedding pigs, weighs 3,600 lbs., and only 2,300 lbs. when it is thrown
into the pens, and I suppose a ton of the 'double-worked' manure is
fully as valuable as a ton of the fresh horse-manure. If so, 15 'loads'
of the pig-pen manure is equal to 24 'loads' of the stable-manure."

"A ton of fresh horse-manure," said the Doctor, "contains about 9 lbs.
of nitrogen; a ton of fresh cow-dung about 6 lbs.; a ton of fresh
sheep-dung, 11 lbs., and a ton of fresh pig-manure, 12 lbs. But if the
Deacon and you weighed correctly, a 'load' or cord of cow-manure would
contain more nitrogen than a load of pressed horse-manure. The figures
are as follows:

A load of 50 bushels of fresh horse-dung,
pressed and free from straw contains 12.37 lbs. nitrogen.
A load of fresh cow-dung 13.05 " "
" " sheep " 10.45 " "
" " pig " 22.50 " "

"These figures," said I, "show how necessary it is to look at this
subject in all its aspects. If I was buying manures _by weight,_ I would
much prefer a ton of sheep-manure, if it had been made under cover, to
any other manure except hen-dung, especially if it contained all the
urine from the sheep. But if b