250 THE ORCHID REVIEW. 
ORCHID PORTRAITS. 
CATASETUM TABULARE, Lindl., vAR. RHINOPHORUM, Rchb. f.—Gard. 
Chron., July 13, pp. 43, 44, fig. 8. 
CATTLEYA LEOPOLD II., L. Lind.—Lindenta, t. 479. This isa variety 
of C. X Hardyana with white sepals and petals, and near C. X Hardyana 
Statteriana. 
CYPRIPEDIUM KIMBALLIANUM.—Gard. Chron., June 29, pp. 800, 801, 
fig. 125. This is C. preestans, Rchb. f., a New Guinea species. 
CYPRIPEDIUM X NAnpu.—Gard. Mag., July 6, p. 403, with fig. 
DENDROBIUM X ILLUSTRE.—/ourn. of Hort., June 27, pp. 561, 566, fig. 
99; Gard. Mag., June 29, p. 385, with fig.; Gard. Chron., July 6, p. 15, 
fig. 4. 
DENDROBIUM NOBILE VAR. CANDIDULUM.—Lindenia, t. 480. 
DISA LONGICORNU, L. fil.—Gard. Chron., June 2gth, p. 791, fig. 121. 
NEUWIEDIA GRIFFITHII, Rchb. f.—Bot. Mag., t. 7425. 
OboNTOGLOssuM Epwarpul, Rchb. f.—Lindenia, t. 476. 
ODONTOGLOSSUM X HARVENGTENSE, L. Lind.—Lindenia, t. 478. This 
is a variety of O. X excellens, as pointed out at p. 112 of our last volume. 
ODONTOGLOSSUM PULCHELLUM MAJUS.—L indenia, t. 473- 
PHAIUS MACULATUS, Lindl.—Lindenia, t. 477. 
SCHOMBURGKIA ROSEA, Lind.—Lindenia, t. 475. 
STAUROPSIS GIGANTEA, Benth.—Lindenia, t. 474. 
—sae st ——_—_. 
ARTIFICIAL HEAT DURING SUMMER. 
The question whether it is necessary to employ artificial heat for the 
warmer growing Orchids during the summer months occasionally crops up; 
-and it would be interesting if some of the principal growers would give us 
the results of their experience in the matter. I am deeply interested in 
everything appertaining to the successful culture of Orchids, and have little 
doubt that there are yet many things to learn respecting the different 
methods of treatment of which we read so much in the Orchid literature 
of the present period. I have read on several occasions that some noted 
cultivators dispense with artifical heat in the hottest houses during the 
summer months, the time when the majority of Orchids are in full growth, 
and it would, I think, interest many of your readers beside myself to learn 
from those who have adopted this method their success or failure. Not 
having had any practical experience in the matter myself, I can give BO 
definite opinion, but I remember a few years ago an amateur cultivator 
saying that during hot summer weather he allowed the fires to go out, and 
only lighted them when the nights were likely to be chilly. At length, 
however, he came to me greatly concerned about his plants, saying -—" My 
