Sound and Rhythm


THIS is an admirable little book. The elements of physiological acoustics are described with remarkable lucidity and accuracy, and there is a wealth of illustration both in the text and in the diagrams. There are chapters on the nature of sound, waves of sound, musical scales, organ pipes, “time” and movement, the ear, and the voice. Nothing could be happier than the exquisite drawings by Miss Martin Mohun showing an ideal couple—a boy and girl—waltzing and drawing sound curves on the seashore. Mr. Lapidge's diagrams are also excellent. To assist the teacher six models, made by Mr. Lapidge, may be obtained for the illustration of the book for one guinea. These models show the structure of the middle ear and the chain of bones. They are accurate in all anatomical details. The box also contains a nightingale pipe, which is in miniature an adjustable stopped organ-pipe. Mr. Edmunds has succeeded in showing how science may be made interesting to young people. There is a constant appeal to observation and experiment, and the whole subject is treated in such a way as to promote the healthy development of the mental faculties in early life.

Sound and Rhythm.

By W. Edmunds. Pp. xii + 96; and Box of Models of the Human Ear. (London: Baillière, Tindall and Cox, 1906.) Price 2s. 6d. net.

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