Livingstone, David, 1813-1873. Report on the Navigation of the Zambesi, [21-25 July 1859]. Images copyright National Museum of the Royal Navy. Creative Commons Attribution-NonCommercial 3.0 Unported (https://creativecommons.org/licenses/by-nc/3.0/). As relevant, copyright Dr. Neil Imray Livingstone Wilson. Creative Commons Attribution-NonCommercial 3.0 Unported (https://creativecommons.org/licenses/by-nc/3.0/). 