This book features Louis Agassizâs seminal lecture course in which the Swiss-American scientist, a self-styled âAmerican Humboldt,â summarized the state of zoological knowledge in his time. Though Darwinâs theory of evolution would soon dismantle his idealist science, Agassizâs lectures are nonetheless modern in their insistence on the social and cultural importance of the scientific enterprise. An extensive, well-illustrated introduction by Agassizâs biographer, Christoph Irmscher, situates Agassizâs lectures in the context of his life and nineteenth-century science, while also confronting the deeply problematic aspects of his legacy. Profusely annotated, this edition offers fascinating insights into the history of science and appeals to anyone with an interest in zoology and natural history. âChristoph Irmscher provides a scholarly and insightful analysis of the intentions and beliefs of Louis Agassiz, a larger-than-life scientist of the mid-19th century and fierce opponent of Charles Darwin.  One of the foremost naturalists of his time, Agassizâs encyclopedic knowledge and brash confidence sustained bold and often controversial theories, which contributed to extreme intellectual ferment at the dawn of contemporary evolutionary biology.â  James Hanken, Alexander Agassiz Professor of Zoology, Harvard University, USA