Sigsbee Sounding Machine - invented by Charles D. Sigsbee and modified from Thomson Sounding Machine. Basic design of ocean sounding instruments stayed the same for the next 50 years. Here the sounding machine is used to set a Pillsbury current meter at a known depth. In: “The Gulf Stream”, by John Elliott Pillsbury, 1891. Call Number GC296.G9 P54 1891.
Photo Category: Oceanography - Pre-1950 - Ships
Photo Location: Washington Navy Yard
Photo Date: 1880?
| Added On | 18th October 2015 |
| Viewed | 10 viewed |
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