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NOAA Photo Library Image - map00007

Top panel same as image map00006. Bottom panel demonstrates method of detaching weight and retrieving bottom sample such that the surveyor would at least know that the sounding weight had reached bottom. However, this did not improve the accuracy of the sounding.

Image ID: map00007, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Credit: NOAA Central Library Historical Collection

Category: Exploration/Maps/

High Resolution Photo Available





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Last Updated:
May 12, 2014