Alexander von Humboldt, Prussian naturalist and explorer, (c19th century) Product:Greetings card The exterior of Gresham College

The exterior of Gresham College with two figures in the foreground

Man and horse jumping a fence

'Christ the Comforter'

Great Temple

by Edmund Lodge (London

Alexander von Humboldt, Prussian naturalist and explorer, (c19th century) Product:Greetings card The exterior of Gresham CollegeAlexander von Humboldt, Prussian naturalist and explorer, (c19th century). Humboldt's (1769 1859) interests included geophysics, geology and botany and he is sometimes called the founder of ecology. In 1800 1804, together with the French botanist Aime Bonpland (1773 1858), he explored the Orinoco and Amazon regions and collected 60,000 plant specimens.