Figure 11. Lightning sounder, designed in 1866 by Lieutenant Charles C. P. Fitzgerald, RN. This model was used on the LIGHTNING during the Faroe Islandsexpedition of 1868. It was used for systematic sounding operations in depths up to 1189 meters
4/4/2019 2:12:18 PM
Photographer: Y. Berard
Credit: Oceanographic Museum of Monaco
Subject: Oceanography
Subject: Historical instruments