I am very appreciative for the provision of information, and permission to publish, from a number of individuals and institutions: Rachel Hart, Keeper of Manuscripts and Muniments and Deputy Head of Special Collections, University of St Andrews; Vicky Hammond, formerly Journals and Archives Officer, Royal Society of Edinburgh; Virginia Mills, Archivist and Katherine Marshall, Picture Curator, Royal Society of London; Douglas Braaten, Chief Scientific Officer and Ellis Rubinstein, President Emeritus, New York Academy of Sciences; Sally Boardman, Intellectual Property Rights, British Geological Survey; Fabienne Michaud, Head of Library and Information Services, the Geological Society of London. Laura Brassington, Department of History and Phi...