1864. Johnston, Alexander Keith, 1804-1871, W. & A.K. Johnston Limited, and William Blackwood and Sons. Cartographic Details: Scale approximately 1:6,000,000 ; (E 67°45'00"--E 91°06'00"/N 35°40'00"--N 5°19'00"). Relief shown by hachures and spot heigh... William Blackwood & Sons; Edinburgh.