twice the cost of the manure. We say
to him farther that he need not fear injuring his wheat plants by the
operation of harrowing and rolling; for, on the contrary, it will act as
a working, and prove of decided advantage. We feel very certain that the
admixture of charcoal and plaster with guano, together with the covering
it will receive by the harrowing, will prevent any material loss of the
ammoniacal principles of the latter; as independent of the affinity
existing between charcoal, plaster, and all nitrogeneous bodies, they
will be greatly aided by the vital principle of the plants themselves.
We are not, however, left to the lights of theory alone, in this matter,
but have the experience of the Honorable Mr. Pearce, of Kent county, of
this State, to guide us to a practical result,--he used, some years
since, a top-dressing of guano and plaster upon his wheat field, and was
rewarded by a large increase of crop."

A correspondent says--"I am satisfied from experience and observation in
the use of guano for the last twelve years, that the best method,
decidedly, of applying it to our crops in this dry climate, is to plow
and spade it into the ground; and autumn is the best season for doing
this, as it gives time for the pungent salts contained in the guano to
get thoroughly mixed with the soil before spring planting. Do not fear
to lose the guano, by plowing it as deep as you please--it will not run
away, depend upon it. At the south it loses half its virtue if not
plowed in at least three inches deep; six to twelve inches would be
still better.

"Spread broadcast on grass land, late in the fall or early in the spring,
if not plowed in before sowing buckwheat, rye or wheat, then spread it
broadcast after sowing the grain, and harrow well and roll the land.
This last operation is quite important."

_Value of Guano on account of its Phosphates._--He who wishes to have
the best grazing grounds, where he can present the richest and most
nutritious herbage to his cattle, will keep his ground well supplied or
manured with guano that abounds in phosphates, knowing that it will
supply the needed nutriment to the grass, and by the grass to the
cattle; and thus his stock will be kept in a high condition and full
flesh, either for the farm or the market.

Again; he who raises wheat, corn, or other grains, has an equal
inducement to look to it that his manures are abundantly impregnated
with these essential elements. Phosph