pl23_ship4004.jpg
Description
Figure 3. H. Fol and E. Sarasin photometer, 1885 model. From top to bottom -Device closed; device open; the surface float. This model was designed to fixthe weak point of the preceding model that was not able to execute a solemeasurement at a given depth.
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
Photometers
Keywords
Oceanography
Historical instruments