esult from all such applications,
and because, more moisture than is to be found on the surface, is
necessary to excite, and carry on, that healthful progressive state of
decomposition, which is required to render guano most available for
present production and future improvement.

"We do not hesitate to express the opinion, that when properly used, as
an adjunct to lime or marl, that it will bring up any sound worn out
land, to at least its original degree, if not a greater degree of
fertility; provided its application be followed by clover. We believe
that, when properly applied to land, either limed or marled the previous
year, it will add twenty-five, thirty, and, in some instances, forty per
cent. to the product of wheat; besides infusing into the soil, the
capacity to grow luxuriant crops of clover, and thus fit it for
profitable future culture. If it will do this, and we are certain it
will, then it will achieve all that any agriculturist can reasonably
expect of it, or of any other fertilizing agent; and we are very sure
there is no other manure equally efficacious, within the reach of
farmers and planters.

"Guano differs much in quality; that from Peru, is confessedly best of
any which has yet been submitted to actual experiment by agriculturists,
or tested by the analysis of chemists, being much richer in its
nitrogenous element, than either the Patagonian or African variety."

He also says--"400 lbs. of guano and 1 bushel of plaster, will ensure a
good crop of corn, so will 200 lbs. guano and eight bushels of bone
earth, or 20 bushels of bone earth, 10 bushels of ashes and 1 bushel of
plaster. Each to be ploughed in."

Much more might be said in favor of using plaster with guano, or some
other fixer of ammonia, wherever it is exposed, on or near the surface.
We add a few more extracts mainly to show that deep ploughing, and
plentiful manuring, are the sure guarantee of bountiful crops.
Bone-dust, except when used in the drill, should always be harrowed in.
It should be put in bulk with other matters, and excited into an
incipient state of decomposition before being used.

Guano should always be ploughed in, if practicable. Harrowing and
cultivating in guano "have been practised both in this country and in
England, by intelligent farmers; and in various instances have been
spoken approvingly of, success having attended such applications in
single crops; but we doubt whether much, if any permanent benefit