Dr. Magruder's book is a compilation with an extensive bibliography on the relation between injury and disease, with especial reference to the manner in which certain diseases may add to claims for injuries by retarding recovery. Dr. Magruder states in the preface that efforts to find in medical literature the information needed to assist him in passing intelligently on the problems which daily arose in his work led him to the compilation of this volume. Overe fifty diseases are considered with special reference to their relation to injuries. Additional chapters have been added on tumors, x-ray burns, x-ray diagnosis and post-mortem examinations. The book is unique and will be of great value to all physicians engaged in insurance work as well as to lawyers and others needing references to current literature on this subject.