DecemBer, 1903.] THE ORCHID REVIEW. 371 
without the usual fiery sensation so much and wisely disliked by gardeners. 
Referring once again to damping, I may say that in most houses there 
are certain parts that become dry much sooner than others, and conse- 
quently, to keep them moist, water has to be thrown over them frequently. 
This proceeding is not always wise, providing there is sufficient moisture in 
the air without that arising from these sources, for, as before stated, an over- 
abundant supply of moisture cannot be too strongly condemned; hence it is 
often better to allow these dry places to remain so, than to damp them 
frequently and create more moisture. The shingle or other moisture-holding 
materials beneath the pipes and stages should be damped when showing 
signs of becoming dry, but all quick-evaporating surfaces should only be 
damped on favourable occasions. 
In the matter of ventilation, the Cool houses should, except during very 
severe weather, always have a little air on, as these, having less fire heat to 
create a circulation, become “ stuffy ’’ much sooner than the warmer depart- 
ments. The latter should be ventilated on all favourable occasions daily, if 
possible, even only for an hour or so. 
The question of watering during winter has been dwelt upon, but I must 
again urge the necessity of moderation in this respect. 
Odontoglossum grande, having done flowering and finished up its bulbs, 
should have less water given at the root, and be gradually brought to a state 
of rest. The same remark will apply to O. citrosmum, which in some instances 
may be already showing new breaks, from which issue the flower spikes. To 
give these much water between this time and the appearance of the spike 
will probably result in their producing none. O. Uroskinneri isnow growing 
and rooting freely, and should in consequence be kept moderately moist, 
and may even now be re-potted or surfaced if in a condition to warrant such 
a proceeding. It should be grown at the warmest end of the Cool house, 
the conditions of which seem to fulfil its requirements. O. pulchellum, now 
in bloom,-is one that does not like a saturated base for long at a time, and 
hence, when shifted into another pot, should only have a very small quantity 
of potting material supplied to it. 
: Masdevallias generally should be kept rather dry at the root all through 
the winter months, and kept a little warmer than the Odontoglossums. 
M. tovarensis is now in bloom, its snow-white flowers being very acceptable 
at this dull season. M. Wageneriana, muscosa, simula, and several other 
small-leaved kinds, with Pleurothallis macroblepharis and Barberiana, do 
better in the cooler atmosphere of the Odontoglossum house. Other 
Pleurothallis grow along with the Masdevallias, and in like manner should 
be kept rather dry. P. Roezlii requires to be grown in the Intermediate 
house, and having now finished growth, should be given only sufficient 
waterto keep it in $rm condition. 
