pl23_ship4010.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23ship4010jpgDescription
Figure 9. W. F. Ewald's photometer. The photometer is inverted with the lensuncovered. Invented by Wolfgang F. Ewald about 1908. An earlier instrument ofthis type is not part of the museum collection. The test of the original was in a lake near Munich and then in a fjord near Bergen.
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