This volume provides a thorough discussion of the physiological and psychological considerations of depth such as decompression sickness, bubble formation, nitrogen narcosis, carbon dioxide and heat loss. A detailed explanation of the various available dive tables is given. Altitude diving, oxygen administration, computers, and planning and conducting deeper dives are a few of the additional topics explained in the author's clear straightforward style. 18cm x 26cm, 320 pages. Includes black and white photographs.