In: "The Meteor Expedition," by F. Spiess, German Atlantic Expedition 1925-1927.
Diagram of echo-sounding on the METEOR. This is one of the earliest diagrams of
echo-sounding in a published work. Figure 10, p. 74.
Library Call Number Q115.D45 1928.
Image ID: ship3026, Voyage To Inner Space - Exploring the Seas With NOAA Collect Photographer: Archival Photography by Steve Nicklas, NOS, NGS