1 MARCH 1940, Page 28

American Jazz Music. By Wilder Hobson. (Dent. tzs. 6d.) Tins

is an excellent introduction to American Jazz Music, written with knowledge and a sense of proportion, and quite free from the fancifulness and pretentiousness which have disfigured most earlier treatises on the subject. It is supple- mented by a well-chosen list of gramophone records, many of which are, however, unfortunately made only in America and are at the moment therefore unobtainable in this country