On the photochemistry of the retina and on visual purple / translated from the German of W. Kühne ; edited, with notes, by Michael Foster.
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On the photochemistry of the retina and on visual purple / translated from the German of W. Kühne ; edited, with notes, by Michael Foster. Credit: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London). Public Domain Mark