Workmen carry out seabed excavation at Leith Dock, Scotland.
Leith Dock, near Edinburgh, Scotland.
Various shots of workmen entering an air lock and adjusting the air pressure before going down, they hold their noses to stop the pain. M/S of the men descending six-fathoms deep. Various shots of the workers digging away in seabed clay with pneumatic spades, this scheme is part of the extension to the dock. Another workman readjusts the air pressure accordingly. M/S of the mud being carried in giant caissons. M/S's huge ladle of mud being lifted from workings and carried away.