THE ORCHID REVIEW. 23 
and shading ; and oftentimes, by these means, in the hottest weather, the 
inside temperature can be kept considerably below that of the outside. 
Taking the other extreme, namely, the East Indian department, it is 
not so much a difficulty of keeping it cool, but warm, and: here fire-heat 
plays a part almost the whole year through. The temperature now should 
be :—Night 60°, or a trifle above, according to outside conditions ; and day 
-65°, and more if induced by sunlight. 
Between these two extremes we have the Cattleya house and Inter- 
‘mediate house. The first describes itself by its name, and is so called 
because most species of Cattleya from the alpine regions of equatorial 
South America thrive under the existing conditions of this house; those 
requiring a degree or so more warmth, or vice versa, can be generally 
accommodated at the warmest or coolest end, as required. The tempera- 
ture should now be 60°, a few degrees more during the day, and a few less 
at night, that is with fire-heat. 
An Intermediate house is one having a temperature intermediate 
between the Cattleya house and the Cool one, and is better suited to the 
requirements of the grower when split up into two or more divisions, where 
varying degrees of warmth and moisture may prevail suitable to the 
inhabitants. 
In some establishments there is what is called a Mexican house, chiefly 
devoted to the Mexican Lelias and others, such as L. anceps, L. 
autumnalis, L. majalis, &c., and no doubt it is a very wise plan to have 
-such an one, as these plants are great lovers of sunlight, but where a 
separate house is not provided they can generally be found a place by 
themselves in the Cattleya house. 
Having enumerated the different houses, we will now take a glance 
through them, noting what is in bloom, and the condition and treatment 
required by the general occupants. Starting again with the Cool Orchids, 
we first note that Odontoglossum crispum, Pescatorei, constrictum, 
Sanderianum, and others of this section have various members of their 
respective species in bloom, and others making new growths. These latter 
will require to be kept more moist at the root than those in bloom, or 
nearly so, but providing the proper amount of moisture be present in the 
air, none of the plants should be given water enough to keep the compost 
in a saturated condition. In flower overhead are hanging plants of O. 
- Rossii and O. Cervantesii. These too, although appreciating moisture, 
should not be dipped immediately the material shows signs of becoming dry. 
Also in this house are plants of Epidendrum vitellinum, than which there 
is no more brilliant coloured Orchid when-in bloom. The plants are now 
at rest, and should only have water given them at long intervals, otherwise 
the leaves will turn yellow and fall off. Less harm will result from keeping 
