One block of glass, one of aluminium, two of calcite and two of quartz, viewed under x-ray. Photoprint from radiograph by W.K. Röntgen, 1895.
- Röntgen, Wilhelm Conrad, 1845-1923.
- Date:
- 1895
- Reference:
- 32622i
Licence: Public Domain Mark
Credit: One block of glass, one of aluminium, two of calcite and two of quartz, viewed under x-ray. Photoprint from radiograph by W.K. Röntgen, 1895. Wellcome Collection. Source: Wellcome Collection.