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Description
Figure 44. Bamberg pneumatic bathometer, constructed by Carl Bamberg. Thisinstrument is in fact an accessory to a Bamberg sounder, which was similar tothe Thomson sounder. It used the pressure of water to push a certain quantityof water into a tube and subsequently measuring it in order to determine thedepth that the tube had attained. (Image credit: Oceanographic Museum of Monaco | Y. Berard)