The sunbeam and the spectrascope / by Howard Townsend.
- Townsend, Howard, 1823-1867.
- Date:
- 1863
Licence: Public Domain Mark
Credit: The sunbeam and the spectrascope / by Howard Townsend. Source: Wellcome Collection.
Provider: This material has been provided by the National Library of Medicine (U.S.), through the Medical Heritage Library. The original may be consulted at the National Library of Medicine (U.S.)
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