Dunmore and Critcherson, ‘The Arctic Regions: No. 92.* The Devil's Thumb partially enveloped in a fog, with the first of the drift Ice from the pack, which was being forced towards the land, from which we escaped through a narrow lead; had we been hemmed in, we should have had to winter there’, 1869, National Gallery of Art, Washington, D.C.
image: 7 7/8 x 11 1/8 in. (20 x 28.3 cm)  support: 48.9 x 61.8 cm (19 1/4 x 24 5/16 in.)

Image rights: Courtesy National Gallery of Art, Washington

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