486376 Sir Charles Lyell, 1875 (stipple engraving) by Jeens, Charles Henry (1827-79); Private Collection; (add.info.: Sir Charles Lyell, 1st Baronet, Kt FRS (1797??875) was a British lawyer and the foremost geologist of his day. He is best known as the author of Principles of Geology, which popularised James Hutton\'s concepts of uniformitarianism ??the idea that the earth was shaped by slow-moving forces still in operation today. Lyell was a close and influential friend of Charles Darwin.); English, out of copyright.