Figure 6. Brooke sounder, invented by Midshipman John M. Brooke, USN, at theinstigation of Matthew Fontaine Maury of the United States Naval Observatory in1852. This was the first sounding device to abandon its lead at the bottom andreturn with a s
4/4/2019 2:12:18 PM
Photographer: Y. Berard
Credit: Oceanographic Museum of Monaco
Subject: Oceanography
Subject: Historical instruments