THE ORCHID REVIEW. v1] 
bright day, so that the foliage may to some extent again dry up before night. 
If the house has a northern aspect, where the sun is unable to reach it, I 
would advise greater caution in this respect. When it is necessary to 
employ a large amount of fire heat to keep up the temperature, then guard 
against excessive drought atmospherically, by damping down the floors and 
stages once or twice a day. 
O. crispum, to be well grown, must be hardily grown, and with this 
end in view we must subject them to the treatment most likely to bring it 
about. Of course we must shade from the sun’s rays during summer, but 
avoid shading more than is really necessary. Do not, for instance, employ 
a shading permanently affixed, and which cannot be removed during dark 
or rainy days, and during the evenings when the sun has lost its power, or 
you will get long-drawn-up, spindly foliage, unable to support its own weight, 
or the centre rib will break here and there, causing the leaf to fall about in 
an ungainly manner, which of course should not be. The foliage should 
rather be short and standing erect without the aid of any support whatever, 
and, instead of being deep green in colour, it is none the less a healthy sign 
to see it mottled here and there with a reddish or a bronzy tint. This state 
of affairs can only be brought about by exposing your plants to as much 
light as possible, short of actual sunshine, and to as much air as possible, 
compatible with their well known partiality for moisture, and to give them 
a position not too far away from the glass. The more of such treatment 
they receive, the better will they be able to successfully withstand the slight 
checks of variable climate. If the plants have been grown tender, they may 
at first appear to resent such treatment, they may possibly drop 3 few 
leaves, and the new growths may progress less quickly, but, rely upon it, the 
result will prove the best in the end. : 
Those who grow O. ‘crispum indifferently will probably have noticed 
from time to time that the foliage has a decided tendency to become more 
or less marked or spotted with watery, black spots. Also that the tips of 
the leaves decay, and have to be trimmed occasionally to present a respect- 
able appearance, and this happens principally during the winter months. 
This is a sure sign of previous wrong treatment, which has caused a 
Weakened constitution, and it will also be a sign that the existing conditions 
are too wet or too cold, probably both, for as a rule the latter produces the 
former. It is frequently brought about during winter when, instead of 
having slight warmth in the pipes with air on, the house 1s insufficiently 
ventilated, in order to keep the thermometer to the desired figure without 
lighting a fire, which is a very bad system to follow. < i 
Keep a sharp watch against insects, especially that insidious little ye ow 
thrip, which is so small as to be unnoticeable to the unpractised eye until 
much mischief is done. On the least signs of it, fumigate with XL. All, 
