pl23_ship4430.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23ship4430jpgDescription
Figure 55. Boutron and Boudet hydrometric devices for measuring density of fresh water.
Credit
Oceanographic Museum of Monaco
Photographer
Y. Berard
Collection
Voyage to Inner Space
History of Oceanography Collection
The Early Instruments - Collections of the Oceanographic Museum at Monaco
Miscellaneous Instruments, Deck Gear, and Laboratory Instruments
Keywords
Oceanography