or; my land being at
present so well filled with manure, nitrogen or ammonia, that we can
grow ample crops without it. When the land only yielded two to two and a
half quarters of wheat per acre, it was grateful for guano; but now,
with a produce of five quarters, there is no necessity for its use. Or
rather, the increased supply of farm manure supplies that necessity."

This is exactly what we have aimed to impress upon our readers; that it
will pay in the crop to which it is applied--it will more than pay in
the soil, because it will bring it into a condition of permanent
fertility. It will pay best upon the poorest soil; because that which
was absolutely barren, becomes fruitful as soon as dressed with guano.
It will always pay whenever and wherever applied to any soil in a fit
condition to be benefitted by manure. It will make not only the soil
rich, but whoever uses it to any considerable extent. It will pay best
when used in the condition in which you buy it, with no additional labor
or expense except breaking the lumps. If it is sown broadcast, not to
exceed 400 lbs. per acre, and plowed in so deep it will not be disturbed
by any subsequent cultivation of the crop to which it is applied, it
will most certainly pay in that crop or the succeeding one. It will pay
upon all plants to which it has ever been applied. Notwithstanding it
will pay best _in_ the soil, it will pay well _on_ it as a top
dressing, if combined with absorbents of ammonia as directed in these
pages.[2] That it has paid in ninety nine cases out of every hundred
where it has been used, the author is well convinced, and equally well
convinced that many may profit by reading what he has here said upon the
subject, and with that feeling, these pages are commended to all the
cultivators of American soil.

[Footnote 2: Upon this point, see Mr. Burgwyn's letter in the appendix.]

* * * * *

APPENDIX.

SUCCESSFUL EXPERIMENTS WITH GUANO ON LONG ISLAND.

Since the body of this work was in type, the following letters have been
placed in our hands. They contain so much valuable information we are
induced to append them. It will be seen by the dates, that they give the
results of the most recent experiments. The names of the writers will be
recognized as those of reliable, practical men.

LETTER FROM SETH CHAPMAN ESQ., OF JAMAICA.--700 lbs. of guano
to the acre, profitable--Lasting benefits of one application--A