.33| 16.35 | 63.10| 6.50 |2.30
Canivano Wheat |11.15| 15.40 | 67.25| 5.70 | .60
ditto ditto (2nd grinding) |12.60| 18.70 | 67.00 |1.70
Hard wheat, grown near Malaga |10.87| 12.15 | 64.38| 12.60 |
| | | |& lactic acid
ditto ditto (2nd grinding) |10.00| 14.50 | 60.20| 15.30 |
----------------------------------+-----+-------+------+---------+----

There is no crop, the skilful and successful cultivation of which on
the same soil, from generation to generation, requires more art than
is demanded to produce good wheat. To grow this grain on fresh land,
adapted to the peculiar habits and wants of the plant is an easy
task. But such fields, except in rare instances, fail sooner or
later to produce sound and healthy plants, which are little liable
to attacks from the malady called "rust," or which give lengthened
ears or "heads," well filled with plump seeds.

Having long resided in the best wheat-growing district in the Union,
the writer has devoted years of study and observation to all the
influences of soil, climate, and constitutional peculiarities, which
affect this bread-bearing plant. It is far more liable to smut,
rust, and shrink in some soils than in others. This is true in
western New York, and every other section where wheat has long been
cultivated. As the alkalies and other fertilizing elements become
exhausted in the virgin soils of America, its crops of wheat not
only become smaller on an average, but the plants fail in
constitutional vigor, and are more liable to diseases and attacks
from parasites and destructive insects. Defects in soil and improper
nutrition lead to these disastrous results. Soils are defective in
the following particulars:

1. They lack soluble silica, or flint in an available form, with
which to produce a hard glassy stem that will be little subject to
"rust." Soluble flint is never very abundant in cultivated soils;
and after they have been tilled some years, the supply is deficient
in quantity. It is not very difficult to learn with considerable
accuracy the amount of silica which rain-water as it falls on the
earth will dissolve out of 1,000 grains of soil in the course of
eight or ten days. Hot water will dissolve more than cold; and water
charged wit