On the photochemistry of the retina and on visual purple / translated from the German of W. Kühne ; edited, with notes by Michael Foster.

Licence: Public Domain Mark

Credit: On the photochemistry of the retina and on visual purple / translated from the German of W. Kühne ; edited, with notes by Michael Foster. Source: Wellcome Collection.

Provider: 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.