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https://www.noaa.gov/media/digital-library-photo/pl23ship4380jpgDescription
Figure 9. Buchanan piezometer (Water Model). John Buchanan was responsible forthe systematic use of various apparatus for the study of sea water and itsproperties during the CHALLENGER Expedition. To that end, he invented anddeployed numerous piezometers including this one that was tested March 6, 1876, in the south Atlantic at Lat. 37 S, Long. 43 W.
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