Man Beneath the Sea is a comprehensive treatment of the problems encountered when man extends his domain to the undersea world. Exploring all as- pects of hardware, human engineering bioscience, life support, and future trends in ocean technology, it provides the technical information required to place man beneath the sea as a scientist or worker. The book is divided into nineteen chapters and includes discussions of div- ing systems, life support systems, pres- sure vessels and hatches, umbilicals, tools, the physiology of diving, and the ocean environment. A chapter on the technical history of diving treats the diving bell, surface-based diving, diving since Haldane in the United States and the United Kingdom, and self-contained underwater breathing apparatus, and is the most complete examination of the subject available. Also found in this book are detailed tab ulated specifications of the world's deep submersibles, including many il lustrations. Each chapter contains im- portant bibliographical references. Man Beneath the Sea is an authoritative volume that will be indispensable for ocean engineers, salvagers, and those involved with diving vehicles, underwater physiology, and apparatus. In addition, students of ocean engineering, oceanography, marine biology, naval architecture, and diving will find it a valuable resource.