NovEMBER, 1911.] THE ORCHID REVIEW. 333 
THE SELENIPEDIUM SECTION.—Plants of this section that are root- 
bound, and require repotting, may be done at this season, using the compost 
as recommended for the green-leaved section in previous numbers. The 
plants must be carefully watered until they become established, after which 
the roots should be kept moist at all times. 
Ca@:LOGYNE CRISTATA and its varieties are fast finishing their growths, 
and the earliest pushing their flower spikes. During active growth this 
useful species needs considerable quantities of water at the root, but at the 
present time much less will suffice, although in no case should they be 
allowed to become dry, or many flower spikes will fail to develop. Many 
cultivators recommend periodical waterings with weak liquid manure, but 
unless the plants are in a semi-starved condition, I do not recommend it. 
If the plants have a good sweet rooting medium, and are in good health, it- 
is unnecessary, and I am firmly convinced that manure water in many Cases 
is harmful to Orchidaceous plants, especially epiphytic ones. 
LYcASTE SKINNERI.—Varieties of this species will now be finishing their 
growths, and beginning to show their flower spikes. The plants should’ be: 
kept on the dry side, but on no account must the bulbs be allowed to- 
shrivel. The cool Intermediate house is a suitable place for the plants 
during the winter months. They are liable to attacks of red spider and- 
brown scale, which must be constantly looked for and removed. 
GENERAL REMARKS.—The cleansing of the houses and their inmates will 
occupy a great deal of time and attention, and at this season there always 
appears to be a vast amount of work that requires immediate attention, and 
therefore it is essential to push on with it as promptly as possible. The 
great things to observe are: An even temperature, no excess of moisture or. 
fire heat, and above all things to avoid an excess of moisture when the 
temperature is low. Thrip and other insect pests must be watched for, and 
eradicated by the usual methods. 
THE AMATEUR’S COLLECTION. 
By C. ALwyn HARRISON, F.R.H:S. 
CooL House. 
Ar this season of the year there is little work to be done beyond keeping 
up the necessary amount of heat, and maintaining cleanly conditions in the 
house. Wash off any shading that may have been applied to the glass- 
during the summer, and if any fogs occur the glass must be well washed. 
Sponge the leaves of all plants, and give all that are in bud or spike enough- 
water to keep the compost damp, but only give those that are growing” 
sufficient to-keep the compost just moist. Resting plants usually require 
water about once a week. Ventilate whenever outside conditions are- 
favourable. 
