On angular aperture of objectives for the microscope : read before the Microscopical Congress at Indianapolis, Ind., August 15th, 1878 / by Geo. E. Blackham.
- Blackham, George E.
- Date:
- 1880
Licence: Public Domain Mark
Credit: On angular aperture of objectives for the microscope : read before the Microscopical Congress at Indianapolis, Ind., August 15th, 1878 / by Geo. E. Blackham. Source: Wellcome Collection.
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