For the physician interested in speech defects and their cause and correction there is much of value in this volume that is not available in his usual medical sources. The discussion of the factors concerned in normal speech is excellent, and there is a good analysis of the factors which produce difficulties, including maldevelopments, anatomic defects of the vocal mechanism, psychologic disorders, neuropathies, endocrine disturbances and impaired hearing.
The carefulness and detail of this study will help to give the pediatrician, especially, a much better insight into speech problems among his patients. While none of the authors is a physician, the medical point of view is kept well in mind, and stress is laid on attention to correctable deviations from health as a prerequisite to speech training.
The general physician will probably be surprised at the number of considerations he has overlooked in regard to speech defects. He will have