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Abstract

WHILE the international classification of cloud forms comprising ten separate types is of the utmost value in world meteorology, it can scarcely be expected that it will satisfy completely the needs of those meteorologists who specialise in cloud study. One is accordingly prepared when opening a book like “Cloud Studies” to find some amplification of the international classification, but it may be doubted whether the separation of clouds into forty named types really serves any useful purpose. Such a system must inevitably be too cumbrous for use in the daily work of meteorological observatories, and stands no chance of obtaining general acceptance. It may also be remarked that although Mr. Clayden pays lip service to the international classification, he makes it plain that in certain important respects he is not in agreement with it.

Cloud Studies.

By Arthur W. Clayden. Second edition. Pp. xv + 200 + 64 plates. (London: John Murray, 1925.) 15s. net.