Popular lectures on scientific subjects / by H. Helmholtz ; translated by E. Atkinson ; with an introduction by Professor Tyndall.

Licence: Public Domain Mark

Credit: Popular lectures on scientific subjects / by H. Helmholtz ; translated by E. Atkinson ; with an introduction by Professor Tyndall. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.