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![Figure 29 ship4231.jpg Figure 29](/sites/default/files/styles/max_1300x1300/https/s3.amazonaws.com/s3-east-testmedia-noaa.woc.noaa.gov/dam/Photos/legacy/pl23_ship4231.jpg?itok=5HJnPcJ1)
Description
Figure 29. Gilson sounder, described in 1906 by Gustave Gilson of theUniversity of Louvain. He described a perfected scoop sounder which was similar to the Stellwagen sounder but contained a number of improvements for assuring a larger quantity of sediment obtained than with the earlier instrument. It wasfirst tested in 1899 near Ostende off the coast of Belgium. (Image credit: Oceanographic Museum of Monaco | Y. Berard)