pl23_ship4356.jpg
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https://www.noaa.gov/media/digital-library-photo/pl23ship4356jpgDescription
Figure 61. Nansen magnifying glass for reading thermometers. This magnifyingglass was described in Plate 2, image ship4353. This magnifying glass differedlittle from that devised by Richter. This type of glass was commercializedabout 1914.
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
Thermometers and Other Temperature Measuring Equipment
Keywords
Oceanography