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Gallery construction particularly in large theatres, cinemas and public assembly halls, demands especial consideration in regard to structural design. No columns being permissible in the direct line of vision and fireproof construction being imperative,
ordinary constructional methods do not apply. In smaller structures of rectangular shape the gallery construction usually consists of raking beams supported at the rear end and towards the fore end by a conveniently placed main girder spanning the whole breadth of building. This method has limitations, however, becoming uneconomical as the breadth increases and inapplicable when the building is pear-shaped in plan or semi-circular at the rear end. In such cases cantilever construction of the type shown on Figure la may be employed with advantage.
W. Scott Wilson
SIR,-Your review of this work in the June number of the Journal contains some statements which are of doubtful accuracy, and others which damn with such faint praise the most authoritative and comprehensive book which has appeared in this field for years, that I am moved to protest.
The first duty which falls to my lot as President of this Institution is to thank
the members for the honour which they have done me in electing me to that office. In so doing I would assure them that I will endeavour to follow, in so far as I am able, the example of my predecessors in serving the Institution to which we have the honour to belong.
Major A.H.S. Waters