Hot-House.
_JANUARY._
At all times be very careful of the temperature of this department, and
more especially at this season of the year, as a few minutes' neglect
might materially injure many of the delicate plants. The thermometer
ought to range between 58° and 65°. In fine sunshine days, admit a
little air by having some of the top sashes let down, one, two, or three
inches, according to the weather, and let it always be done from eleven
to one o'clock; but by no means in such a manner as to cause a draught
in the interior of the house, which would be very prejudicial. Therefore
be always cautious during cold weather, in administering that necessary
element to vegetation, which is so conducive to health.