Scope and Contents Photographs of Johnson-Sea-Link (15); Johnson-Sea-Link in the water (1); J. Seward Johnson, Edwin Link, and I. E. Wallen with Johnson-Sea-Link at Harbor Branch (3); divers using devices on Johnson-Sea-Link (1); Marion and Edwin Link with Johnson-Sea-Link (4); Johnson-Sea-Link II underwater (1); Johnson-Sea-Link I shown resting on ocean's floor with diver using lock-out system (1); Edwin Link and Bill McLean with Johnson-Sea-Link (1); Johnson-Sea-Link aboard Sea Diver (1); Edwin Link in...