Celebrated English geologist, born at Kinnordy, in Forfarshire; bred for and called to the bar; he left his practice, and gave himself to the study of geology, to which he had been attracted by Alexander Buckland's lectures when he was at Oxford; his great work was his "Principles of Geology," which, published in 1830, created quite a revolution in the science; it was followed by his "Student's Elements of Geology," which was modified by his conversion to Darwin's views, and by "Antiquity of Man," written in defence of Darwin's theory.