geo229-fig-0001 October 13, 2017 Return to: Global environmental images: history, politics, cultureFull resolution (1064 × 843) Image navigation Previous Image Next Image Isotherms as background for global mapping Source: H. Berghaus, 1849, Physikalischer Atlas, vol. I, plate No.1. Available at: http://cybergeo.revues.org/docannexe/image/25478/img-9.jpg