In: "The United States Fish Commission" by Richard Rathbun

In: “The United States Fish Commission” by Richard Rathbun. Century Magazine, Vol. 43, Issue 5. 1892. “Sounding the abyss with piano-wire.” This image is among the most realistic representations of sounding with the Sigsbee Sounding Machine. Most of the deep-sea soundings made prior to the advent of acoustic systems were made with piano-wire sounding machines.

Photo Category: Historic Exploration
Photo Date: 1892