Title
Sigsbee Sounding Machine
Caption
Sigsbee Sounding Machine; invented by Charles D. Sigsbee and modified from Thomson Sounding Machine.. Here the sounding machine is used to set a Pillsbury current meter at a known depth
Date
1891
Credit line
Photo12/Ann Ronan Picture Library
Reference
ARP17A26_067
License type
Rights managed
Available size
60,0Mb (2,6Mb) / 13,1in x 17,8in / 3917 x 5354 (300dpi)