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Figure 26. The Leger dredge sounder in the descending position. This samplingdevice was designed to retain a portion of the captured sample even if a rockheld the jaws open after being activated to snap shut. This sounder was testedtwenty-two times in 1903 on the PRINCESS ALICE II between depths of 18 and 4560meters. (Image credit: Oceanographic Museum of Monaco | Y. Berard)