20 PRESENT-DAY GARDENING 
and make any alterations necessary. The heating apparatus 
should be regulated, and, above all, the best possible pro- 
vision 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 elapsed it will be ready to receive the plants. 
In such a house heated as a cool, intermediate house, 
with a minimum temperature of 50° to 60° Fahr. in winter, 
a large number of showy Orchids can be grown successfully, 
Those species which require great heat should be care- 
fully avoided, for, although cool-house Orchids are easily 
managed in a house warmer than is necessary for them, 
the hot-house kinds usually fail in a temperature which 
is too low to allow of their making growth under favourable 
conditions. In such an intermediate house the Odonto- 
glossums, Masdevallias and other favourite cool-house 
Orchids can be grown successfully, if arranged in the 
cooler part of the house and carefully watered. The Cattle- 
yas, Lzlias, and the garden hybrids should be placed on 
the staging in the middle of the house, well up to the 
light; the Brazilian Oncidiums, Sophronitis grandiflora, 
and Stanhopeas should be suspended from the roof of the 
house, but in such positions as will avoid placing them 
over the plants on the side staging. The Odontoglossums 
and Cochliodas may be accommodated on the side staging in 
the cooler and moister part of the house. In such a house 
