pl23_ship4022.jpg

Figure 19

Image

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https://www.noaa.gov/media/digital-library-photo/pl23ship4022jpg

Description

Figure 19. Color measuring tube of Julien Thoulet, designed about 1903 to facilitate the use of Forel's color scale. It was only a little more practical than the original form.

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