pl23_ship4007.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23ship4007jpgDescription
Figure 6. P. Regnard hydrochloric acid tube designed by Paul Regnard about 1889to study the chemical action of light in oceanic waters.
Credit
Oceanographic Museum of Monaco
Photographer
P. Roggero
Collection
Voyage to Inner Space
History of Oceanography Collection
The Early Instruments - Collections of the Oceanographic Museum at Monaco
Photometers
Keywords
Oceanography
Historical instruments