On colour sense : an address delivered to the Biological Section of the British Association at Edinburgh on August 4, 1892 / by William Rutherford.

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On colour sense : an address delivered to the Biological Section of the British Association at Edinburgh on August 4, 1892 / by William Rutherford. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.