THE ORCHID REVIEW. 345 
The sweetly scented Pleione lngenaria is most effective when well grown 
and in good bloom. They are now just going over, and should soon be 
repanned and suspended in the Cool house, keeping the compost moist. 
They start growing immediately, and do not appreciate much drought. 
The genus Phalzenopsis is one liable to mystify Orchid growers. In one 
garden it will grow like a weed without the slighest trouble, while in 
another it will not. Every house in turn is tried, and every dodge resorted 
to, to make the different species grow and present a respectable appearance, 
but all to no purpose. It seems to be simply a matter of finding the right 
house, and giving the right temperature ; the latter is easy enough when the 
former is found. As a guide to success I would advise that a house be 
selected that lies sheltered from the north winds, and that the hot water 
pipes are arranged so that a sufficient supply of warmth can always be had 
when wanted, thus avoiding great fl i in the perat The 
thermometer during winter should never be allowed to fall below 60°, and 
only that during the very coldest weather, during which time the plants 
should be quite two feet away from the glass; otherwise, the cold strikes 
down to the foliage and causes spot—not the watery, but indented spots. 
The plants must never be allowed to receive much direct sunshine, not even 
during winter, whilst during summer they should be heavily shaded against 
the sun. In summer water should be supplied pretty liberally, and in 
winter rather sparingly. The atmosphere should be kept fairly moist, but 
never be tempted to run hot water pipes through the water tank with a view 
of causing a moist atmosphere, because this generally proves too much and 
results in watery spots. Keep the air sweet and healthy in winter by a little 
bottom ilati When rebasketing do not, if it can be avoided, take 
the plants out of their baskets, but remove the old material carefully with a 
stick and fill up with new. Ants are deadly enemies, and must be kept 
away at all costs. Thrips are also troublesome, but these can more easily 
be got rid of by fumigation or by tobacco powder, or both.  Phalanopses 
should now be producing their flower spikes, which should be allowed to 
remain only if the plants are strong. Oncidium Papilio and 0: Krameri- 
anum always grow first class when the Phalznopses are doing likewise; they 
are undoubtedly both fond of heat. 
It is mostly necessary at this season to re-arrange the plants to some 
extent in most of the houses, so that each plant may have the position 
deemed most suitable for the winter months. The best position for the 
various species often takes a good long time to find out, but when once done 
the advantages are soon apparent. In the Cattleya house, for instance, all 
those that are growing more or less should be given the warmest and 
moistest part, whilst those that are quite dormant should : be kept by 
themselves. The same in the Intermediate houses. The Cypripediums and 
