210 THE ORCHID REVIEW. [JuLY, 1y12- 
Holford, K.C.V.O., Westonbirt, at the R.H.S. meeting held on June 4th 
last, and to which a First-class Certificate was given, also a Cultural 
Commendation to Mr. Alexander. The specimen bore thirteen spikes and 
an aggregate of 73 flowers, which are pure white, with some light yellow 
markings at the base of the lip. It is indeed a charming specimen, as can 
be seen from the illustration, for which we are indebted to the Editor of 
the Journal of Horticulture. The variety received an Award of Merit two 
years ago (O.R., xvill. p. 218). 
CALENDAR OF OPERATIONS FOR JULY. 
By J. T. BarKER, The West Hill Gardens, Hessle, E. Yorks. 
THE conditions of temperatures, watering, ventilation, and atmospheric 
moisture laid down last month, and fully described in May, are also 
applicable to the present one. Owing to a period of dull, wet, and sunless 
weather, we have had to keep a certain amount of heat in the pipes in 
all the houses, with the exception of the Odontoglossum house. This 
is always necessary, as a damp stagnant atmosphere is harmful at any 
time. 
CYPRIPEDIUMS.—The warm-growing species of this genus, which 
comprise C. Rothschildianum, C. Stonei, C. Sanderianum, and other 
similar kinds, with the hybrids raised from them, require the temperature 
of the warmest house, and must receive liberal treatment at all times. The 
present is a most suitable time to undertake a general overhauling of the 
plants, with a view to the providing of new rooting material to the 
specimens that are in need of it. The drainage must be perfect, and the 
compost as advised for the winter-flowering varieties, will satisfy their 
requirements. As each variety of these useful plants passes out of flower, 
it should be taken in hand, and when all are done, thoroughly cleaned, and 
put in a position where they can be shaded from strong sunshine. Water 
may be given directly after the repotting, to settle the compost around the 
roots, but care must be used in the application of water afterwards, until 
the new roots are moving through the compost. When established, copious 
supplies must be given, especially when in active growth. Light sprayings 
overhead with soft, tepid water, when the weather is favourable, are 
beneficial. Cypripediums thrive in plenty of atmospheric moisture, and 
are very rarely attacked with thrip and other insect pests where it is 
supplied, although, where the opposite conditions prevail, they are then to 
be found in legions. C. Lawrenceanum, and its variety Hyeanum, C. 
callosum and its variety Sander, grow better at the warm end of the 
Intermediate house, but care must be taken that the position is not too dry. 
C. BELLATULUM.—The C. bellatulurm section is one which a great many 
people fail to grow successfully, and retain in a healthy condition over a 
