Figure 48. Lucas sounding machine, invented by Francis Lucas. Lucas began his career laying submarine cable in 1856. He subsequently became chief engineer at the Telegraph Construction and Maintenance Company. He invented this lightweig t 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.
Photo Category: Oceanography - Historical instruments
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|Added On||18th October 2015|