JuLy, rgtt.] THE ORCHID REVIEW. 207 
: ; CATTLEYA HOUSE. 
Much the same treatment will be required here as advised in my last 
month’s article. Overhead sprayings and damping down the house will be 
needed three or four times daily, but only enough shade should be given to 
prevent scorching the leaves. A shady corner should, however, be reserved 
for the Cypripediums, and also for any plants in flower. Plenty of air must 
be admitted, but it is a good plan to close all the ventilators from 3 to 5 p.m., 
at the same time damping well and raising the blinds. A nice growing 
atmosphere will thus be produced. If the evening gives promise of being 
fine and warm, some of the bottom ventilators may then be opened, closing 
them if necessary about nine o’clock. The temperature will run up to a 
high degree this month with the sun, but no harm will be done to the plants 
if the house is airy and well laden with moisture. Fire heat will only be 
necessary if the weather becomes dull and cold. The lowest temperature 
from now till the beginning of September should be 68° Fahr. 
This house should be very gay this month. Cattleya Mossiz is still in 
flower, and many of the fine Cattleya hybrids and Lzeliocattleyas should 
open their blossoms. Of the former C. Enid, Mantinii, Frederickie and 
Rothschildiana must rank amongst the best, whilst some of the orange- 
coloured Lzliocattleyas, such as Charlesworthii, Hypatia, luminosa, Phoebus 
and Veronique should be making a grand show. Dendrobiums are mostly 
over, but some Vanda ccerulea should be showing for flower. 
ODONTOGLOSSUM GRANDE, HASTILABIUM, AND U ROSKINNERI.—These- 
beautiful species are now starting into growth, and should be removed from 
the Cool house to a position near the door of the Cattleya house, where, 
from several experiments, I am firmly convinced that they do better. Leave 
them there until the flower spikes are showing. An airy and light position 
must be chosen, and plenty of water given. Should they need repotting it 
must be performed at once. Remove the plant with care from the old 
receptacle, gently shake off the soil, and cut away the back bulbs and any 
dead roots. Three of the former are sufficient to support the new growth. 
Fill a fresh pot to within one-third of its depth with clean broken crocks. 
On these set the plants, and fill up to the rim of the pot with soil. This 
should consist of finely-chopped polypodium fibre, a handful of well- 
decayed oak-leaves, and a little peat or osmunda fibre. A few heads of 
green living sphagnum moss should be worked into the surface soil. Keep 
the plants rather dry and well-shaded until a start has been made in the 
new compost. A gentle spray over the leaves once a day, damping also 
between the pots, will be all the moisture required for two or three weeks. 
The compost must be used in a damp state, and be well mixed together. 
Do not repot unless necessary. Next month I shall hope to explain fully 
the important work of overhauling the plants and houses. 
