Elevation of a iron mill (top), elevation of the equipment for staining papers (bottom): both lettered for a key. Engraving by S. Porter, 1806, after J. Farey the younger.

  • Farey, John, 1791-1851.
Date:
1 November 1806
Reference:
45413i

Licence: Public Domain Mark

Credit: Elevation of a iron mill (top), elevation of the equipment for staining papers (bottom): both lettered for a key. Engraving by S. Porter, 1806, after J. Farey the younger. Wellcome Collection. Source: Wellcome Collection.

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