ass-seed in the last of winter; it will benefit the grain, and cause
the grass-seed to catch well, and get an earlier and more rapid growth.
Let all who would not lose their seed and labor, remember that
grass-seed not sown so as to form good roots, before the frosts of
winter or the drought of summer, will be lost; the plants will be
killed. Timothy-seed sown in the fall, one peck to the acre, will
produce a good crop the next season.

GREENHOUSE.

Greenhouses vary as much in style and cost as dwellings. The simplest is
any tight enclosure, covered with a glass roof at an angle of forty-five
degrees, facing the south, and kept warm by artificial heat. The
temperature is not allowed to be lower than forty nor higher than
seventy degrees of Fahrenheit; this will keep plants growing and make
them blossom, and affords a good place for starting plants to be
transplanted to out-door hotbeds, and finally to the vegetable garden,
after frosts are over. There is but one main danger in greenhouse
culture, and that is obviated by a little care: it is, allowing the air
to become too much heated for the health of the plants; they require but
little heat, but need it regularly. Some greenhouses are warmed by
stoves, and serve a good purpose; others have a stove set in a flue
which is built in the wall, gradually rising until it has passed around
two or three sides of the building. Place three or four sheet-iron pans
over this flue, at different points, and keep them filled with water;
the fire in the flue will heat the water, and impart both warmth and
humidity to the atmosphere, which is very favorable to the health and
growth of plants. Such a house is favorable to the growth of tender
exotic fruits and plants. A similar house without any artificial heat
affords an excellent place for the cultivation of the finest varieties
of foreign grapes.

GYPSUM, OR PLASTER OF PARIS.

The fertilizing properties of this article were discovered by a German
laborer in a quarry, who observed the increased luxuriance of the grass
by his path, when the dust fell from his shoes and clothes. This led to
experiments which demonstrated its fertilizing power. With the
protracted controversies on gypsum we have nothing to do; certain
important facts are established which are valuable to agriculturists.

Gypsum is valuable as an application to the soil, at from three fourths
to one and a quarter bushels to the acre. On poor land, for a flax crop