THE ORCHID REVIEW. rst 
departments. I may also mention here that no great alarm need be felt 
about the night temperature in the warmer house falling as low as that of the 
cooler one during summer. So long as more warmth is given during the 
day, and the house shut up earlier in the afternoon, the plants will go on 
well enough. It is quite natural for the temperature to fall at night in their 
native habitat. Those belonging to the warmer section of cool-growing 
Orchids are too numerous to mention separately, but may be briefly 
indicated as follows: In the first place, I may say that it includes most of 
those beautiful and glorious things belonging to the genus Cattleya. There 
are a few, however, that should be excepted, such as C. Eldorado, C. 
Lueddemanniana (speciosissima), C. superba, C. Aclandiaw, and C. Dowiana, 
which are really better for more warmth during the winter. It also 
‘embraces most of the lovely species of Lelia and many of the Vandas as 
the beautiful V. coerulea, V. Amesiana, V. insignis, V. Kimballiana, and V. 
suavis, in fact, nearly all the genus. A few of the Aérides, such as A. 
odoratum, A. Lobbii, A. japonicum, A. Fieldingii, A. crispum, and A. 
Vandarum. <A_ great quantity of Cypripediums and _ Selenipediums ° 
may be classed in this group, the only exceptions being those 
that come from the hot lowlands, such as C. phillippinense, C. 
Sanderianum, C. Stonei, and C. longifolium, and even these need not 
really be excluded, as they will do fairly well under the same treatment. 
As for the Dendrobiums which will succeed here, their name is legion, 
in fact all of them, with the exception of the few that come from the 
Torres Straits, such as D. bigibbum and D. Phalznopsis, which are better 
for a higher temperature throughout the year, although they may be made 
to do fairly well if the most suitable positions are selected. Then there are 
many of the warmer growing Odontoglossums, such as O. grande, O. 
Londesbervughianum, O. Harryanum, O. citrosmum, O. Insleayi, and O. 
Schlieperianum ; also many of the Oncidiums, such as O. sphacelatum, O. 
Harrisonianum, O. hastatum, and others. Many Coelogynes, Epidendrums, 
Zygopetalums, Lycastes, Brassias, Maxillarias, Miltonias, Trichopilias, &c., 
will succeed here. 
I think I have now shown what an extraordinary number of different 
species and varieties can, with a little tact, patience, and perseverance, be 
grown well in one house and under practically the same treatment. Of 
course, when you have a large number like this in one house, little matters, 
more or less vexing and difficult to cope with, are continually cropping up. 
In many cases these difficulties are the direct result of our being ignorant of 
the exact conditions under which certain plants may be found in the most 
luxuriance in their native habitats, hence we are unable to select for them 
the most suitable positions within our houses.. The same temperature and 
atmosphere are fairly suitable for all, and the positions suited to their 
