Louis Agassiz / words spoken by Professor William James at the reception of the American Society of Naturalists by the President and Fellows of Harvard College, at Cambridge, on December 30, 1896.

Licence: Public Domain Mark

Credit: Louis Agassiz / words spoken by Professor William James at the reception of the American Society of Naturalists by the President and Fellows of Harvard College, at Cambridge, on December 30, 1896. Source: Wellcome Collection.