The principles of physiology by John Augustus Unzer; and A dissertation on the functions of the nervous system, by George Prochaska.

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The principles of physiology by John Augustus Unzer; and A dissertation on the functions of the nervous system, by George Prochaska. Public Domain Mark. Source: Wellcome Collection.

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This material has been provided by the Gerstein Science Information Centre at the University of Toronto, through the Medical Heritage Library. The original may be consulted at the Gerstein Science Information Centre, University of Toronto.