Livingstone, David, 1813-1873. Letter to [George Denman?], [26 September 1861?]. Images copyright The Fitzwilliam Museum, University of Cambridge. Images reproduction by permission of the Syndics of the Fitzwilliam Museum, Cambridge. Images protected by UK copyright law. The following are prohibited: a) Public performances or display, including transmission over a network, except by specific and separate agreement, b) The preparation of any derivative work, including the extraction, in whole or part of the image, and c) Any rental, lease or lending of the product. As relevant, copyright Dr. Neil Imray Livingstone Wilson. Creative Commons Attribution-NonCommercial 3.0 Unported (https://creativecommons.org/licenses/by-nc/3.0/). 