1833 Principles of Geology" by Charles Lyell. Volume II. Held by a piece of fresh Galapagos lava. Influential book introducing geological gradualism as a tenet after Hutton. The central argument in Principles was that "the present is the key to the past" ie that the geological processes now in operation can and should be used to interpret the past. Charles Darwin (who later became a friend) cited it as an inspiration for his long view of natural selection as an onging gradualistic process of change. Darwin had the first book on his Beagle Voyage,and received the second in South America. He must have been struck by how forcibly Lyell was against organic evolution of animals in this volume - citing "centres of creation" instead. The care Darwin took in presenting his case owes much to the difficult reception it might get from teachers and friends whose mind was already made up | |
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