DESCRIPTION
Incandescent Submarine Electric lamp -- Siebe Gorman --
Many inventions have been brought forward and experiments made with lamps for submarine illumination,but after years experience in the manufacture and practical of various kinds, we have come to the conclusion that the only really reliable and effectual light for under-water work is the ELECTRIC LIGHT
To be candid, however, we must say that even this is not all that could be desired should the water be muddy, but for night work, in tolerably clear water, for salvage operations, laying concrete blocks on harbour, bridge and dock works, repairing ships below the water line, ..etc, it is exceedingly useful.