The Library Shelf Available to Purchase

The present reviewer was privileged to see the manuscript of this book some three or four years before its publication. It is a pleasure, therefore, to record that in its final form the book satisfies very fully the appetite whetted by the earlier reading. It is a large volume, containing over seven hundred pages, and its cost (57s. 6d.) is high even for these days; nevertheless, it can be whole‐heartedly recommended to all who are interested in aerodynamics and in the application of aerodynamics to aircraft design. Indeed, recommendation is perhaps too weak a term: the reviewer regards this as a book which must be acquired by all aeronautical engineers. Its title, Wind‐Tunnel Technique, represents only the main central theme of the book; but since there is virtually no field of aerodynamics, or indeed of related subjects such as aeroelasticity, which is not nowadays subjected to scrutiny by means of wind‐tunnel experiment, any volume on this subject which pretends to completeness must survey practically the whole field of fluid dynamics. The volume under review very successfully compresses into one small compass just so much of every important branch of aerodynamics as is necessary for an understanding of the application of wind‐tunnel techniques to that branch of the subject.