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.)

    13/16