THE ORCHID REVIEW. 215 
CALENDAR OF OPERATIONS FOR JULY. 
By H. A. Burperry, Highbury, Moor Green, Birmingham. 
THE temperatures and general treatment in all departments should be con- 
tinued as advised for last month. 
But little repotting will now remain to be done, and this month should 
see most of it completed, with the exception perhaps of an isolated plant or 
two, such as the latest of the Cattleya gigas, Lelia crispa, and similar 
late-flowering kinds. Cattleya Mendelii and C. Mossiz will now have 
passed out of bloom, and if not already repotted, should be taken in hand at 
once, and done carefully in the same way and in a similar compost to 
that recommended for other Cattleyas, and given every encouragement to 
produce strong healthy growth. : 
The few remaining plants in the Intermediate house should likewise now 
be finished. This house usually contains such a varied collection of genera 
and species that it is necessary to examine them at intervals, in order that 
no plant may escape being repotted at the proper season, which is, as 
previously stated, as they commence to grow. Among the last batch to 
be repotted here (which is now just done) were found a few Oncidiums, 
including O. sarcodes, which is a kind given to deterioration. The best 
method that I have found to grow it at present is to repot it every year, 
filling the pots three-parts with drainage, and employing nothing but 
sphagnum moss, placed in very lightly, which is watered copiously during 
the growing season. Among the Odontoglossums was, notably, the 
beautiful O. citrosmum, an Orchid which it is not advisable to repot too 
frequently, and if done well should last for two or three years. It is best 
grown in two parts of peat to one of sphagnum, and potted firmly, keeping 
it moist and, using a little extra shading for a few weeks afterwards, to 
prevent excessive shrivelling, which is otherwise apt to take place. Baskets 
are preferable to pots, though the plants grow equally well in the latter; but 
suspenders are necessary from the time the young flower-spikes appear, as 
these naturally take a downward course, and look so much more graceful 
than when staked in an upright position. A few of the Lycastes, including 
the latest to start of L. Skinneri and L. plana, were also repotted at 
this date, as likewise Bifrenaria Harrisonize, Trichosma suavis, Houlletia 
Brocklehurstiana, Acropera Loddigesii, and Nanodes Medusa, all of which 
require the usual compost of peat and sphagnum moss. 
Sobralias may be repotted during this month, or as soon as the flowering 
season is past. They are quick, strong-growing plants, and when well 
established give but little trouble. They make a large quantity of thick, 
fleshy roots, and must have pots of a reasonable size, which should be only 
one-fourth filled with drainage. They should be potted in good yellow 
loam with a little coarse sand, and the old ball of roots need not be broken, 
