The problem of human life : containing the fundamental principles of the substantial philosophy, with a review of the six great modern scientists, Darwin, Tyndall, Huxley, Haeckel, Helmholtz, and Mayer, upon evolution, spontaneous generation, the nature of force, &c., &c / by Wilford Hall.

Licence: Public Domain Mark

Credit: The problem of human life : containing the fundamental principles of the substantial philosophy, with a review of the six great modern scientists, Darwin, Tyndall, Huxley, Haeckel, Helmholtz, and Mayer, upon evolution, spontaneous generation, the nature of force, &c., &c / by Wilford Hall. Source: Wellcome Collection.