Helmholtz Ophthalmoscope. 19th Century artwork of an ophthalmoscope as invented by the German physiologist and physicist Hermann von Helmholtz (1821-1894). From Weltall und Menscheit (Universe and Humanity),by Hans Kraemer (ca. 1880) | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / CCI Archives |
Bildgröße: | 3241 px × 2752 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |