202 THE ORCHID REVIEW. [JULY, t910. 
the lip buff yellow, and the usual purple band absent. In 1895 var. 
Vinckeana was exhibited by Baron Schréder, and is described as having 
lavender-coloured sepals and petals, and a dull slaty-purple hip (Oi Re 
iii. p. 159). Shortly afterwards M. Jules Hye received an Award of Merit 
for the variety atrorubens (Q. R., iii. p. 190), a form having a very richly- 
coloured lip. Lastly we have the beautiful albino which is the subject of 
our illustration. Thus we find that as regards variability C. Lawrenceana 
Stands in rather marked contrast to most of its allies of the C. labiata group. 
CALENDAR OF OPERATIONS FOR p Rog eg 
By W. C. Prick, Oakdene, West Didsbury. 
THE principle work to be done this month will be watering, damping, and 
cleaning. It is important that the plants have a sufficient supply of water 
at the roots, and the atmosphere sufficiently charged with moisture to meet 
all requirements. They should never be allowed to approach dryness at 
this season. Keep a good growing atmosphere in the houses. An 
experienced grower can always.tell when entering a house, by the feel of the 
atmosphere, whether it is suitable for the plants, and a_ beginner may 
acquire the same by duly noticing the behaviour of his plants and the state 
of the house from time to time. If a house feels uncomfortable to the 
Srower personally, he may be sure that it is also. uncomfortable for the 
plants. I have often thought, when reading the cultural rules given in 
different papers upon plant growing, that some people may follow these 
tules blindly, without stopping to think whether the conditions are the 
Same as those at the writer's place. There are many instances where a 
slight departure from the general rules is advisable, but this is a matter that 
must be left to the grower, who naturally is in the best position to judge of 
that requires it should be stood on one side, to be sponged immediately 
after watering is finished. By doing this you never get a plant badly 
infested. When sponging at this period only sufficient insecticide to colour 
the water should be used, the young foliage being very tender, and great 
care should be taken so as not to bruise or break them, and so make the 
plant unsightly. Tie up all young growths that need it, and see that they 
are not tied too tightly. Let them have plenty of room for swelling as 
they grow, for if they are tied too tightly the tie will cut into the bulbs, and 
if not noticed in time will gteatly interfere with their development. 
