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Description
Figure 60. Joe Soundings sounder. This device was described in nauticalmagazine in 1832 by an individual with the pen name Joe Soundings. It used acounter incremented by a propeller to measure the distance to the bottom. It is similar to the Massey sounder and Massey is sometimes cited as the inventor. There is no information concerning testing or use of this instrument. (Image credit: Oceanographic Museum of Monaco | Y. Berard)