May, 1915] THE ORCHID REVIEW. 140 
the plants to more light and sunshine. This is particularly applicable to 
Cattleyas, as light is always very beneficial to them towards the end of the 
summer months. The stippling on the Cool houses is done more thickly, 
and a mixture of flour and water is used, this being more suitable for the 
plants, as the surface of the glass remains cooler than when mineral: 
substances are used. Choose a fine bright day for stippling the Cool 
houses, and remove the plants, so that the sun can effectually dry the 
coating firm and hard. 
The stippling of the glass has, undoubtedly, its advantages and 
disadvantages; for instance, during a long spell of dull weather a great deal 
of clear light is prevented from reaching the plants, which is not altogether 
good for them, but, on the other hand, the blinds or shadings need not be 
let down nearly so soon in the morning, and may be pulled up very much: 
earlier in the afternoon, thereby affording the plants a very great amount of 
natural sun-heat, which is always vety beneficial to the majority of those 
which occupy the warmer divisions. 
Coo. HovusE.—Plants of Sophronitis grandiflora that require fresh» 
rooting material may now be attended to, as they are commencing to push 
éut roots from the growths which have recently flowered. Provide plenty” 
of drainage, and employ osmunda fibre and sphagnum moss as the rooting’ 
medium. Cut the moss up rather finely, as when used in a rough, coarse~ 
state this material holds moisture for too long a time, which is always 
inimical to the health of the new roots. Suspend the plants near to the” 
roof glass, and afford plenty of water whilst the roots are active, and till the 
growths are fully made up, after which time the plants, being at rest, will 
need very little water to keep the small pseudobulbs and leaves fresh: 
andgreen. Plants of Odontoglossum Rossii, O. Cervantesii, O. Humeanum,. 
and O. CErstedii that have recently passed out of flower should be suspended 
close to the roof glass, and be afforded just enough water to prevent the 
pseudobulbs and leaves from shrivelling. An excess of water whilst the’ 
plants are at rest will cause the roots to decay. 
Ancutoas.—lIn this house the various Anguloas, including A. Clowesii, 
eburnea, uniflora, Ruckeri, and Cliftonii are making new growth, and 
pushing up their flower spikes. Where convenient, it is advisable to’ 
remove the plants to a cool, shady part of the Intermediate house. The 
plants should not be repotted now, especially those that are about to- 
flower, but the operation may be carried out immediately the blooms are 
cut, and new roots begin to push out from the base of the young growths.. 
I have tried several mixtures for these Anguloas, and the plants that 
succeeded best were those planted in well-drained, hard, coarse osmunda 
fibre, no sphagnum moss being used. When repotting, keep the base of 
the young growths on a level with the rim of the pot, and pack the material- 
