In 1799, Alexander von Humboldt and Aime Bonpland set out to determine whether the Orinoco River connected with the Amazon. But what started as a trip to investigate a relatively minor geographical controversy became the basis of a five-year exploration throughout South America, Mexico, and Cuba. The discoveries amassed by Humboldt and Bonpland were staggering, and much of today's knowledge of tropical zoology, botany, geography, and geology can be traced back to Humboldt's numerous records of these expeditions. One of these accounts, Views of the Cordilleras and Monuments of the...