THE ORCHID REVIEW. 215 
When repotting, it is not advisable to disturb the old ball of roots more 
than is really necessary, for if pulled about very much a great check is given. 
Sobralias delight in Intermediate or Cattleya house temperature, and in a 
moderate supply of water the whole year round, as they have no special resting 
period. 
Odontoglossum Schlieperianum and the rare O. Williamsii are now 
flowering, and will afterwards commence to grow, when they also should be 
repotted. They are very pretty Orchids when strong, but from small 
weakly pseudobulbs the spikes are spindly and the flowers insignificant, 
and therefore should not be allowed to flower till the plants are strong. 
The Intermediate house is the best place for them. 
The summer flowering Cypripediums, such as C. Stonei, C. Law- 
renceanum, C. barbatum, and C. Godefroyz, should also receive attention 
when flowering is past. The section to which the last-named _ species 
belong is not of easy management, unless the plants happen to get a 
position that suits them. A few weeks ago I saw one growing, and growing 
like mad, in what seemed to me to be a most unlikely place. It was 
suspended over a water tank, a good distance from the glass, and in a not 
by any means light position, in fact, a very shady one. It is worth a trial. 
For this section, stiff fibrous loam intermixed with small lumps of chalk is 
the best compost that I know of. 
The inmates of the East Indian house are now growing apace, and 
must not lack moisture. The deciduous Calanthes are getting well Sa: 
and may receive more water at the roots. Phalznopses are pushing up 
good leaves and making plenty of young roots; this is a good season to 
pick out the old decayed sphagnum moss and replace it with new; but care 
must be taken that the roots are not disturbed in the slightest. The Den- 
drobiums, too, are growing well. When the new growths are well up, and 
have a good number of new roots, rather than keep the compost too 
soddened with water, it is a good plan to keep it drier, making up for it = 
getting the syringe well in among them two or three times daily when the 
days are bright and hot. The plants like it, and it is one of the best cage 
to keep down red spider, which must not on any apcount be ant did 
Prosper. If the house is as well and freely ventilated during such splen 7 
summer weather as we are now getting as it ought to be, the casualties re) 
the new growths damping off will be but few with the majority ae 
But with D. Bensoni and D. superbum you have to be very care! - 
syringing not to let the water get down into the axils, for ae — om 
given to damping off. I find it is best for this department, and 2 ig . 
if possible, a slight warmth in the hot water pipes during oe sit ae, 
air both top and bottom can be left on all through the night. We hut the 
grow Orchids well without air : it is the life and soul of them. To shu 
