Alexander Supan was among the first to recognize the nature of oceanic trenches. Compare his nomenclature for the Aleutian Trench to John Murray's 1899 map. Perhaps Supan Deep as shown by Murray was a little jab as Murray continued this sort of terminology until his untimely death in 1914.

Image ID: map00049, Voyage To Inner Space - Exploring the Seas With NOAA Collect
Credit: NOAA Central Library Historical Collection

Category: Exploration/Maps/

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