CXI PROCEEDINGS OF THE ROYAL HORTICULTURAL SOCIETY. 
to green, generally olive green. Other plants, notably Aucuba, fail 
entirely as they pass from the yellow to a muddy brown or black 
colour. After treatment the plants should be washed (like photo- 
graphic prints) in running water for about two hours. They are then 
dried under as light pressure as is compatible with keeping the plants 
from twisting, or, after shaking off as much water as possible, may be 
dried in sand. 
In many cases the plants are rendered so flaccid by boiling that 
sand-drying is difficult or impossible. Plants that have required long 
boiling not infrequently revert to a bad colour when sand-dried. 
Young parts of plants green better than old ; better results may be 
expected from " spring " leaves than from " autumn " leaves. Wooden 
(not metal) forceps should be used. An article on the subject by 
Professor Trail was published in the Kew Bulletin, p. 49, 1908. 
Scientific Committee, November 7, 1916. 
Mr. E. A. Bowles, M.A., F.L.S., F.E.S., in the Chair, and eleven 
members present. 
A curious Willow.' — Mr. J. Fraser, F.L.S., showed a specimen of a 
large-leaved form of Salix rep ens which is called argentea, and used 
at times for producing weeping trees by grafting or budding on an 
upright-growing stock. It occurs wild in sea sands here and there 
on the coast. 
Cephalotus with partial Pitchers. — Mr. W. Hales, A.L.S., showed a 
well-grown specimen of Cephalotus with many well-developed pitchers 
and ordinary foliage leaves, and among the latter a leaf of structure 
intermediate between the pitcher and the foliage leaf. 
Colour Standards.- — Mr. J. Ramsbottom, M.A., remarked that a 
committee of the British Association had been formed to consider the 
question of producing an efficient colour standard chart, as the result 
of a paper he read at the meeting in 1915. The committee was not, 
on account of the war, sitting at the present time, but its meetings 
would be resumed as soon as possible. 
Variegated Tropaeolum majus. — He also said that he had examined 
the foliage of the Tropaeolum shown by Colonel Rawson at a recent 
meeting, and found the silver sheen upon it due to the separation of 
the epidermis from the subjacent tissue as in silver-leaf. A fungus 
was present, possibly a species of Fusarium, in some of the cells, but 
not in all, and he thought that it had followed, not caused, the dis- 
turbances in metabolism which had resulted in the variegation. 
Abnormal Colchicum autumnale. — Mr. E. A. Bowles exhibited an 
abnormal Colchicum in which the floral segments were divided down 
to the base, very similar to the one figured in Sowerby's British Botany, 
but now flowering in autumn. 
