"From the plains of Venezuela to volcanoes and waterfalls, von Humboldt combines observations with travel narratives and philosophical musings. Annotations really help provide a context to the essays; this work also includes an index, conversions for von Humboldt's various measurement units, an introduction, and preface. This excellent translation of one of von Humboldt's most important works should introduce this great naturalist to an entirely new audience."–Edward J. Valauskas, Curator of Rare Books, Library, Chicago Botanic Garden "Current Books on Gardening and Botany"