236 _ THE ORCHID REVIEW. [Aucust, 1909. 
The effect is very realistic, both drawing and colouring being accurate, 
but moderate reduction gives the best results, for when a lens is used, the 
picture has a granular appearance, and a sufficiently high power shows the 
individual starch grains of which the film is composed, and the effect is lost. 
The process is not a simple one, but it has the advantage of giving a direct 
picture, not a negative which has to be reversed by making a print. And 
of course there is no comparison between the results, for the colour gives a 
life-like appearance to the picture which no photograph in black and white 
can possibly have. The accuracy with which such colours as lilac and 
purple are rendered comes as a revelation to those who have attempted to 
photograph Cattleyas and similar flowers in their true colour values by the 
help of yellow screens and isochromatic plates. The process has evidently” 
a great future before it, but unfortunately the pictures cannot be duplicated, 
the only plan being to repeat the process on a new plate. 
A very ingenious method of showing these pictures is to place them 
upside down ina frame in front of an ordinary window, and at an angle of 
45 degrees to a mirror laid upon the table, the picture then appearing in its 
natural positioninthe mirror. Inthe ordinary way they are held up against 
the light, the colours being visible only by transmitted light. 
THE HOLLAND HOUSE SHOW. 
THE great Summer Show of the Royal Horticultural-Society was held at. 
Holland House, Kensington, on Tuesday and Wednesday, July 6th and 7th, 
and produced a very fine display of all kinds, though the comfort of visitors 
was spoiled by heavy rain in the afternoon of the first day. The show of 
Orchids was magnificent, and the arrangement of the groups excellent. 
The awards included three Gold and two other medals, two Silver Cups, 
one First-class Certificate, one Award of Merit, one Certificate of 
Appreciation, and one Cultural Commendation. 
F, Menteith Ogilvie, Esq., The Shrubbery, Oxford (gr. Mr. Balmforth), 
staged a magnificent group, to which the Society’s Gold Medal was 
awarded. It was over a bay in extent, and very charmingly arranged, the 
surface being broken by a couple of deep dells, with corresponding 
elevations in the centre and at the ends, while the culture and quality of 
the plants was also excellent. The group contained a lot of beautiful 
Odontoglossums, Miltonia vexillaria, Thunias, Leliocattleyas, Phalznopsis 
amabilis Rimestadiana, Cattleyas and the various representative genera, 
some good examples of Cypripedium callosum Sander, C. X Maudiz, and 
C. Lawrenceanum, with a few other things being grouped together in the 
dells. Among handsome things noted we may mention a noble form of 
Miltonia X Bleuana grandiflora, with two racemes and nine enormous 
flowers, some good Lelia tenebrosa, Cattleya x Dusseldorfii Undine, 
