Before revision: ISBN 978-0-262-01704-6 Variants of the organic memory theory were proposed by advocates of Lamarckian evolution such as Samuel Butler, Ernst Haeckel, Théodule-Armand Ribot and Richard Semon.
After revision: Eugenio RignanoISBN 978-0-262-01704-6 Variants of the organic memory theory were proposed by advocates of Lamarckian evolution such as Samuel Butler, Ernst Haeckel, Théodule-Armand Ribot and Richard Semon.