Project Gutenberg 2010-07-22 Public domain in the USA. 1274 Lyell, Charles, Sir 1797 1875 Principles of Geology or, The Modern Changes of the Earth and its Inhabitants Considered as Illustrative of Geology Wikipedia page about this book: https://en.wikipedia.org/wiki/Principles_of_Geology Produced by Julia Miller, Turgut Dincer and the Online Distributed Proofreading Team at http://www.pgdp.net (This file was produced from images generously made available by The Internet Archive/American Libraries.) "Principles of Geology" by Sir Charles Lyell is a scientific publication written in the early 19th century. This foundational work explores the modern changes in the Earth and the evolution of its inhabitants, using these principles to clarify the concepts and processes of geology. Lyell's aim is to illuminate the historical development of geological thought, emphasizing the significance of understanding present-day geological processes to interpret past events. The opening of the book serves as an introductory preface, where Lyell outlines the purpose, structure, and significance of his work in the broader context of geological science. He distinguishes between his treatise, which focuses on contemporary natural changes, and earlier works that dealt with ancient geological phenomena. The author emphasizes the necessity of studying present dynamics—like erosion, sedimentation, and volcanic activity—to interpret the Earth's geological history accurately. He reflects on the historical progress of geology itself, noting that it has evolved through various misconceptions and approaches over the ages, linking geological observations with insights from other scientific disciplines. (This is an automatically generated summary.) Reading ease score: 52.9 (10th to 12th grade). Somewhat difficult to read. en Geology QE Text Category: Science - Earth/Agricultural/Farming 3172098 2025-08-13T11:59:27.119087 text/html 3170213 2010-07-22T18:29:18 text/html 8913533 2025-08-13T12:00:21.275394 application/epub+zip 8965705 2025-08-13T11:59:42.094948 application/epub+zip 1208076 2025-08-13T11:59:32.517982 application/epub+zip 9259857 2025-08-13T12:00:45.842170 application/x-mobipocket-ebook 9116814 2025-08-13T12:00:11.020348 application/x-mobipocket-ebook 1964483 2022-09-15T08:39:59.252785 application/x-mobipocket-ebook 2649417 2025-08-13T11:59:19.941021 text/plain; charset=us-ascii 2646950 2010-07-22T18:29:14 text/plain; charset=us-ascii 2646314 2010-07-22T18:32:52 text/plain; charset=us-ascii 2649422 2010-07-22T18:36:34 text/plain; charset=us-ascii 21881 2025-08-13T12:00:46.052143 application/rdf+xml 12946 2025-08-13T11:59:33.632971 image/jpeg 3241 2025-08-13T11:59:33.226007 image/jpeg 949146 2010-07-22T18:38:18 application/octet-stream application/zip 947935 2010-07-22T18:38:18 application/octet-stream application/zip 8953364 2010-07-22T18:38:20 application/octet-stream application/zip 947557 2010-07-22T18:38:18 application/octet-stream application/zip 9088100 2025-08-13T11:59:27.639000 application/octet-stream application/zip Archives containing the RDF files for *all* our books can be downloaded at https://book.klll.cc/wiki/Gutenberg:Feeds#The_Complete_Project_Gutenberg_Catalog en.wikipedia