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NOAA Photo Library Image - expl3214

Figure 40. The 'bull-dog' sounding machine. In: Thomson, Wyville. 1873. The Depths of the Sea. MacMillan and Co., London.

Image ID: expl3214, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Credit: NOAA Central Library Historical Collections

High Resolution Photo Available





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Last Updated:
April 30, 2013