| 60-65 | 55
November | 65-70 | 60 | 60-65 | 55 | 55-60 | 50
December | 65-70 | 60 | 60-65 | 55 | 50-55 | 45
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Degrees Fahrenheit. The higher day temperature should be obtained by
sun-heat when possible.

Further remarks on this and other details will be found under the
headings of the different genera, but it will be better now to state in
general terms that during the season of active growth any reasonably
high temperature by sun-heat, secured by keeping the house tolerably
close and well shaded, greatly benefits the plants. This is specially
noticeable where batches of _Dendrobium nobile_, _D. Wardianum_, and
other deciduous Dendrobiums are grown. Those who grow them best allow
the house containing the plants to become very warm; they remove the
shading early in the afternoon in order to let the plants get the
longest duration of light possible, and they keep the house very moist
until the evening.

THE SINGLE ORCHID HOUSE

It is doubtful whether the owner of a large collection of Orchids gets a
greater amount of pleasure than the beginner starting with but one
Orchid house, provided the owner of the single structure is careful in
selecting his plants.

In cases where only one Orchid house is possible, and a more or less
general collection of plants is desired, that house should be heated as
an intermediate house. The single Orchid house has often been the
starting-point of more extensive culture. It is generally commenced by
utilising an existing plant-house, in some cases, unfortunately, without
making the necessary preparation for the new occupants.

When it has been decided to adapt a house for Orchids, the proper course
is to clear the house of its contents, thoroughly overhaul the interior
fittings, such as staging, &c., and make any alterations necessary. The
heating apparatus should be regulated, and, above all, the best possible
provision must be made for catching and storing rain-water, even if this
necessitates the providing of a brick and cement tank beneath the
staging.

If the existing floor in the house is of concrete or tiles, or any
similar material, it must be removed, leaving the natural earth for the
surface of the basement, and providing a wood-trellis for walking on in
spaces between the stages. Let the house be thoroughly cleansed and
painted, and after a short time has