Principles of Geology Or, The Modern Changes of the Earth And Its Inhabitants Considered as Illustrative of Geology Item Description Volume one only of two volumes set. Illustrated with 4 plates, fold-out map, numerous in-text drawings and diagrams. Published by John Murray, London (1867). Publishers’ original dark green boards with gilt vignette to upper board. Spine lettered in gilt. Book Dimensions: 23 x 15 x 4.5 cm and Number of Pages: 671 including index + 32 pages of publishers’ catalogue Condition An original copy (Not a library edition). Firm and well bound volume. Corners are slightly bumped and worn. Ownership inscriptions to top of title page. Slight foxing to endpapers, with occasional spotting to few pages. The text and plates are clean and bright (Please see pictures). The Author “Sir Charles Lyell, 1st Baronet, FRS (14 November 1797 – 22 February 1875) was a Scottish geologist who demonstrated the power of known natural causes in explaining Earth's history. He is best known as the author of Principles of Geology (1830–33), which presented to a wide public audience the idea that Earth was shaped by the same natural processes still in operation today, operating at similar intensities. He was a close friend of Charles Darwin, and contributed significantly to Darwin's thinking on the processes involved in evolution. As Darwin wrote in On the Origin of Species, "He who can read Sir Charles Lyell's grand work on the Principles of Geology, which the future historian will recognise as having produced a revolution in natural science, yet does not admit how incomprehensibly vast have been the past periods of time, may at once close this volume." Lyell helped to arrange the simultaneous publication in 1858 of papers by Darwin and Alfred Russel Wallace on natural selection”.