APRIL, 1907.] THE ORCHID REVIEW. 107 
during this month I would not advise it being done later than one o'clock. 
Sobralias, Spathoglottis, Epidendrums, especially those of scandent habit, 
Phaius, Miltonias, Oncidiums that are growing, Cymbidiums, and 
Coelogynes will all appreciate judicious spraying. I do not advise spraying 
Dendrobiums this month unless the weather is very warm and bright. I 
need hardly say it is most desirable when spraying to miss the plants in 
flower. 
To carry out this operation well and quickly, yet only applying enough 
water to give a dew-like appearance on the foliage, I know no better 
appliance than the ‘‘ Abol Syringe.” It is simple and cheap and does not 
easily get out of order. 
SHADING.—As far as possible the varieties that revel in dense shade: 
should be grouped together, choosing the shadiest portion of the house, 
and then those that want more light and, in some cases, direct sunshine, 
can be treated accordingly. As I said last month some stippling over the 
glass is helpful in carrying this out, and it will be well now to put it on 
much thicker over those that require most shade. 
ODONTOGLOssUMS.—Many of these will be ready for potting now, should 
they require it, using a compost of two parts peat, two parts chopped 
sphagnum, and one part leaf soil, with some coarse sand and small crocks. 
The pot should have a few crocks placed in first, completing the drainage 
with rhizomes; a good healthy plant does not require drainage of more 
than one-third the depth of the pot. I know that many consider August 
and September the time for potting Odontos, and that is quite right for 
those that flower during April, May, and June, but in a collection of Odonto- 
glossums one can generally find some of the plants in flower during most 
months of the year. When that is so how can all the plants be ready for 
potting about one time? I do not mean to say that those not ready to pot 
in the early autumn potting season are ready now, for I find that there are 
not many weeks in the year when some plants are not in the right condition, 
and thus enable potting to be done if it is required. When the new 
growths are about three inches high is the time to pot an Odonto, irrespective 
of season. 
In many collections now there are home-raised hybrids, and those that 
have wintered in small pots will be helped considerably if they are carefully 
shaken out and given fresh material, even if they have to go back into the 
same sized pot. Those that have made good progress and are growing 
freely will be helped by giving them a shift into a larger pot. It is of 
great importance that seedlings should be as far as possible kept on the 
move ; my experience teaches me that a seedling does not stay long in one 
condition ; it is either improving or going back. The same mixture will be 
found very suitable, only it works better for seedlings when it has been 
