Europe, Isotherm Curves, Humbolt/Berghaus Physik Atlas, 1852.

" Karte von Eüropa, zur Ubersicht der Wärme-Verbreitung in diesen Erdtheile " published in Dr. Heinrich Berghaus' Physikalischer Atlas, Gotha, 1852 (map dated 1837 and 1849.) Fine steel engraved map with original hand colour. Isotherms marked against temperature scales to left and right borders. Slight age browning around edges and very slight foxing. Centre-fold as published. Size 40 x 33 cms. Ref D556