Issue 3

The PRESIDENT proposed a hearty vote of thanks to Mr. Drury for his paper and for the very great care with which he had prepared it.

Sir,-with reference to Mr. Drury’s paper of the January issue of the Journal, I cannot see on what basis Mr. Drury assumes 7 1/2 tons per sq. in. as total available stresses in a pillar which has a direct stress and bending stresses.

The PRESIDENT, in introducing Mr. Tapsell, said that his paper was an extremely interesting one on rather a new subject which the author had been investigating at the National Physical Laboratory. He was very sorry, and apologised to Mr. Tapsell that so few members had turned up that evening, but the possibility was that, this being such a new subject, they had not realised its importance even in the everyday use of metals.

SEWERAGE may be defined as the removal,by means of pipes, culverts or other channels, of waste water containing in varying quantities organic and inorganic matter in suspension and solution; and a sewerage system may have to deal with any one or any combination of the three following constituents:- l. Domestic Sewage. 2. Storm water from wholly or partially impermeable surfaces in built-up areas. 3. Trade wastes. A.H.S. Waters

ALTHOUGH the asthetic effect of a building is largely determined by the nature of its surfaces-that is, by the texture and colour of its external walls, the subject of surface treatment does not generally receive in everyday practice the attention which its importance deserves, and in the literature of architecture and building there are only scant references to recent developments in the technique of surface finishes to walls, roofs, and internal divisions of modern buildings. Hugh Davies

Although refrigeration is a comparatively new science it has made enormous strides in the last quarter of a century, and is rapidly becoming an indispensable factor in the life of civilised communities. Edgar A. Griffiths