General and practical optics / by Lionel Laurance.

  • Laurance, Lionel.
Date:
1914

Licence: In copyright

Credit: General and practical optics / by Lionel Laurance. Source: Wellcome Collection.

Provider: This material has been provided by UCL Library Services. The original may be consulted at UCL (University College London)

    7/390 (page 5)