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![Figure 49 ship4254.jpg Figure 49](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_ship4254.jpg?itok=ueanhQ5t)
Description
Figure 49. Bamberg sounding machine, devised by Carl Bamberg as a modificationof the Thomson piano-wire sounding machine. Thomson placed his model on theCHALLENGER but it was never successfully used there. It was the American vessels TUSCARORA and BLAKE that ultimately proved the usefulness of wireline sounding. (Image credit: Oceanographic Museum of Monaco | Y. Berard)