Photographs by Dr Duchenne. The bottom photograph is of an experiment involving galvanism (electricity). From 'The expression of the emotions in man and animals',Author Charles Robert Darwin | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / British Library |
Bildgröße: | 4300 px × 6653 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |