This is the eighth edition of a familiar publication. In its present edition it has been completely rewritten and is a completely new handbook rather than a revision. The subject matter is exceedingly comprehensive in scope and apparently thoroughly up to date. Three hundred and thirty-eight chapters are included in the section on diagnosis and treatment, as against 256 in the previous edition. The manual presents an amazing mass of information in convenient form. As a quick and handy reference it can be highly recommended.