Dr Edward A. Wilson was a member of the ‘Discovery’ expedition to the Antarctic in 1901–04 and the ‘Terra Nova’ expedition 1910–13, both of which were led by Captain Robert Falcon Scott. He made a visual record of what he saw, by sketching in daylight and painting in watercolour at night in the winter base hut illuminated by the light of acetylene gas lamps. The paintings have survived, but when viewed under daylight now they may look quite different from what Wilson saw. We have measured the spectrum of the gas lighting and digitised the paintings with a hyperspectral image scanner to investigate the effects of chromatic adaptation.
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