pl23_ship4253.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23ship4253jpgDescription
Figure 48. Lucas sounding machine, invented by Francis Lucas. Lucas began hiscareer laying submarine cable in 1856. He subsequently became chief engineer at the Telegraph Construction and Maintenance Company. He invented this lightweigt wire-sounding machine in 1878 and first used on the ALERT the same year. This type of machine was used by British hydrographic ships after 1887.
Credit
Oceanographic Museum of Monaco
Photographer
Y. Berard
Collection
Voyage to Inner Space
History of Oceanography Collection
The Early Instruments - Collections of the Oceanographic Museum at Monaco
Sounding Instruments
Keywords
Oceanography
Historical instruments