The successful firm of W. & A. K. Johnston was founded by Sir William Johnston (1802-88) and was based in Edinburgh from 1825. The following year he was joined by his brother Alexander Keith Johnston. The ‘Physical Atlas’ offered here is the ‘first British atlas to give a synoptic view of physical geography’ (Tooley). First published in 1848 this is an example of the expanded edition of 1856 with 5 more maps. It is arranged under Geology 11 maps, Hydrology 6 maps, Meterology 6, Botany 2, Natural History 6, Ethnology and Statistics 4. The atlas is based on Berghaus’ ‘Physikalischer Atlas’. Dreyer-Eimbcke, Oswald (1997) ‘Heinrich Berghaus and August Petermann’ in ‘IMCoS Journal’ 70 pp. 19-27; Shirley (2000) ‘Berghaus and Johnston: Pioneers of the Thematic Atlas’, in IMCoS Journal no. 83 pp. 31-5; Smith, D. (2000) ‘The Business of ‘W. & A. K. Johnston’ 1826-1901′, in IMCoS Journal 82 pp. 9-19; Smith, David. (2001). ‘The Cartography of ‘W. & A. K. Johnston’ 1826-1901′, in IMCoS Journal no. 86 pp. 5-16.