Mitchell, S. Augustus (Samuel Augustus), 1792-18681 map : hand colored; 30 x 29 cmScale approximately 1:33,500,000. Vertical scale approximately 1:40,000 (W 180°--E 180°/N 90°--S 90°). ; Relief shown by hachures or pictorially.; Mountain heights is a pictorial representation.; Includes key with elevations to mountains.9980791124302441ark:/81985/n29k47t1pS. Augustus MitchellPublicRiversChartsLengths of the principal rivers in the world ; Heights of the principal mountains in the worldMaps1847Northwestern University