Astronomy: a diagram showing how to determine longitude. Coloured engraving by J. Emslie, 1851, after himself.

  • Emslie, John, 1813-1875.
Date:
1851
Reference:
46554i

Licence: Public Domain Mark

Credit: Astronomy: a diagram showing how to determine longitude. Coloured engraving by J. Emslie, 1851, after himself. Source: Wellcome Collection.