Reprint of the original 1940 edition. "The story you are about to read is a recital of my work for thirty-five years as a diver, on many types of assignments and in many kinds of circumstances and conditions. You will learn what I did; why, how, and for whom I did it. You will lean about others, associated with me in this fascinating profession, and some of their experiences. In giving you this account, in this way, I sincerely hope that I shall have painted a picture which will not only prove entertaining and instructive in itself, but will serve to offset the all too many inaccuracies and false impressions created by some whose experience is insufficient, or whose imaginations exceed their knowledge of the subject".- Preface to 1940 edition.