Figure 27. Ekman sounder, designed by Vagn W. Ekman in 1905. This instrument
is similar to one designed by his father Fredrik L. Ekman in 1893 and to
Magnaghi's sounder, described in 1891.
Image ID: ship4229, Voyage To Inner Space - Exploring the Seas With NOAA Collect Photographer: Y. Berard Credit: Oceanographic Museum of Monaco