Introduction to physiological psychology / by Dr. Theodor Ziehen ; ... translated by C.C. van Liew, P.H.D., and Otto W. Beyer, P.H.D ; with 21 illustrations.

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Introduction to physiological psychology / by Dr. Theodor Ziehen ; ... translated by C.C. van Liew, P.H.D., and Otto W. Beyer, P.H.D ; with 21 illustrations. Public Domain Mark. Source: Wellcome Collection.

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