Figure 15. - The Valve Sounding Lead (in section).
In: "The Voyage of the CHALLENGER - The Atlantic" Vol I, by Sir C. Wyville
Thomson, 1878. P. 62.
Library Call Number Q 115.C59 1878. v. 1.
Image ID: ship3114, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Photographer: Archival Photography by Steve Nicklas, NOS, NGS
Category: Historical Ships/Sounding/
• High Resolution Photo Available