Figure 21. Knudsen thermometer invented in 1896 by the Danish professor MartinKnudsen, this model was not much different than the Chabaud thermometer. Thisinstrument was used in the second expedition of the INGOLF in 1896.
4/5/2019 9:18:47 AM
Photographer: Y. Berard
Credit: Oceanographic Museum of Monaco
Subject: Oceanography