This book, at the time it was published, fulfilled a real and pressing need. Many vague and poorly presented concepts of man's responses to cold have cluttered both the popular and scientific literature. The authors of this volume have performed a vital service in cleaning up the deadwood. Dr. Burton's masterful presentation of the basic physics and mathematics of thermal stresses cannot be too highly commended. Anyone interested in temperature regulation, the influence of environment upon the human organism, and/or thermal injury would benefit by perusing this volume. It is hoped that a new edition of this book will bring up to date the contributions made in the years since this volume's publication.