OcTorER, 1913.] THE ORCHID REVIEW. 315 
the changeable conditions of the winter months as well as a thoroughly 
matured one. 
WATERING is another very important factor in Orchid culture, but the 
plants vary to such an extent in their individual requirements that no 
definite rule can be laid down. I should like to emphasise the great 
diversity in the requirements of different Orchids as regards water at the 
roots. Two things are mentioned in last month’s Orchid Review which 
strongly impress this fact upon me, namely, the case of Cypripedium Rolfei 
being grown in all loam in MM. Peeters’ establishment, and M. Delanghe 
Vervaene’s Orchid culture in leaves. I have previously pointed out in 
these pages the whole matter of watering and composts must go hand in 
hand, so to speak, and whenever we alter the latter the former will also 
require modifying in accordance with the nature of the compost. If any 
uncertainty is felt as to the application of water to the roots at the present 
season, it will be wise to err on the side of giving too little rather than too 
much. 
SHADING.—All permanent shading should now be dispensed with and 
the plants inured to all the light possible. In those districts where the sun 
has much power it may be advisable to run the blind down on bright days 
for an hour or so, especially if there is any danger of the plants scorching, 
but the growth being made under such ideal conditions this season they 
will not be very susceptible to injury from this source. 
ODoNTOGLossuMs.—The repotting of this family should be completed 
as soon as possible, and those that are not in the desired condition will be 
best held over until the early spring months. Owing to the many hybrids 
of very complex parentage, the culture of this family is quite different from 
what it used to be when only the species and natural hybrids were grown. 
Plants are now found in all stages of growth at almost any season, especially 
if the quantity grown is large, and they can therefore be repotted at almost 
any season of the year, though it is always advisable to postpone the potting 
of any of this family during a very hot period. 
DENDROBIUMS, as they complete their growth, should be placed in the 
resting house, as advised last month, and sufficient water should be given 
them to prevent shrivelling at any time. 
CaTTLEyas and allies should be repotted if they are in need of new 
rooting material. The present will be found a most suitable season for 
repotting many species and hybrids which have passed out of bloom. Any 
that are seen to be pushing new roots may have attention in this respect. 
I do not hesitate to repot any member of this large family at any season 
provided new roots are observed to be pushing. The whole of the plants 
repotted must have water applied to the compost with great care until the 
new roots have re-established themselves in the new compost. This is the 
