THE ORCHID REVIEW. 53 
CALENDAR OF OPERATIONS FOR FEBRUARY. 
) By W. H. Wuire, Burford, Dorking. 
DuriInG the month of February the temperatures mentioned in our pre- 
ceding calendar should be maintained, allowing a slight rise with increasing 
sun heat. In ventilating the houses great care should be exercised to avoid 
draughts, as bright sunshine is often accompanied by very cold winds. A 
sharp look out must also be kept for insect pests, which must be kept in, 
check by the application of the necessary remedies. 
In the East Indian house plants of the beautiful winter-blooming Angraecum 
sesquipedale will be fast pushing from their stems a number of young fleshy 
roots; therefore if any plant requires more root room it must be attended 
to at once. If any have lost their lower leaves, leaving the stem bare, they 
may be cut down, and repotted, as last month advised for Aérides : using as 
small pots as possible. This Angraecums is a heat and moisture-loving 
species, so that the East Indian house is the proper place for it.. Place the 
plants in a shady position, and during the spring and summer months give 
abundance of water at the roots, after which the quantity should be gradually 
reduced, but not entirely withheld, as the roots do not appreciate dryness. 
Avoid keeping the plants in a saturated condition, or spot will assuredly 
make its appearance, but when the plants require water give them.a thorough 
Soaking. The foliage of Angreecums must be carefully sponged occasionally, 
as small yellow thrips are very partial to the young leaves. Every effort 
should be made to eradicate these pests. A little Scotch snuff or tobacco 
powder puffed down into the centre of the plant will drive them from their 
hiding-places, after which several slight fumigations may be given on 
alternate evenings, to complete their destruction. 
The elegant spring-flowering Platyclinis glumacea will by this time have 
made considerable progress with its young growths. The coolest-end of 
this house is the most suitable place for it, and the plants should be stood 
on inverted pots, to bring them as near the light as possible, until the 
flowers commence to open, when they may: be lowered, and placed in a 
prominent position, in order to show to perfection the exquisite beauty of 
this lovely Orchid. As the plants are now growing freely, and making a 
quantity of young roots from the flowering: growths, they must receive 
frequent waterings. Immediately the flowering period is over, the, plants 
Should be repotted, using equal parts of peat and chopped sphagnum, to 
Which add a moderate quantity of broken crocks. Any plants that have 
become bare may be broken up and put together again, as advised for 
Miltonias on a succeeding page. The species of Platyclinis are very subject 
to red spider ; it is therefore necessary to keep the under parts of the leaves 
well syringed during the hot days of summer. When growth is completed, the 
