Manned submersibles continue to be extremely important for exploring the ocean depths. Finally, the history of deep submersible development has been recorded. The author has covered these developments in great detail, not simply as a segment of marine history, but as a foundation for future designers, operators and client/users. "I cannot think of a more qualified person to write this book. Will Forman's professional involvement with the oceans virtually spans the contemporary history of man's exploration and use of the deep ocean". Don Walsh, President, International Maritime Inc. The chapters are listed in approximate order of dates of launch. By faithfully representing the operational chronologies, trends emerge in the life of each submersible from initial trials through the ultimate fulfillment of its potential. From the 1776 Turtle the submersibles included are, Deep Jeep, Alvin, Aluminaut, The Deepstars, The Star Series & Asherah, The Perry Submersibles, Deep Quest, DOWB Deep Ocean Work Boat, Triest 2, The Nektons & Delta, Dolphin, Beaver MK4, Ben Franklin, Sea Cliff, Turtle (1968), NR-1, Kumukahi, DSRV-1 Mystic, Nemo, Johnson-Sea-Links & Clelia, DSRV-2 Avalon, Deep View and more!