To the Editor of the
specifications haves recently "been ~The following new and MOCHA Dace News?
Published by the 'Britian Standards Institution "(Gormeriy known "ay the \Brltish 'Engineering' Standards' Ale sociation), and T should be obliged You will give prominence to them in Your Journal and so assist the Institation in making. them' known to. In-
No 20-08 for tore 20-108 for Portable Pho No. 617-188 for the Identifcation of fad Gables in Bias No. 625-1938 for Colours. for Signa poses. A Glasses for
No. 621.1995 for Plan-Convex (Builseve). Lenses, No, 625-1035 for Bacteriological Test Tubes, Durham:
Aggiutination Tubes, Copies of the above or any ollier of the numerous specifications covering: all classes of products which are Published by the Institution, cun be obtained at $2.00 a copy (with a few exceptions at $5.00 a copy) from Mise A. B. Ritchie, c/o The Asiatic Petroleum Ca. '(North China) Ltd., Engineering Department, No. 1 The A, B. Rrreum, Hon. Secretary. Nov. 20.
Text read from the printed page and cleaned; old type leaves the occasional error.