Philadelphia: Blanchard &L Lea, 1851. 4to. [ii], [xi]-xxxii, 33-695, 32, 16 pp., including 2 publisher’s catalogues, both dated July, 1851. FIRST AMERICAN EDITION. Text complete despite pagination; lacking original blanks. With numerous text illustrations. Original publisher’s blind-stamped cloth, rebacked; minor browning and spotting throughout, especially to the publisher’s catalogues. Item #14556
First American edition. The author (1796-1855), an English geologist and anthropologist, was the first director of the Geological Survey of Great Britain. He was a pioneer of early methods of geological survey, publishing numerous books, although he was also well-known for his cartoons and other drawings. This book, first published in London the same year, was an enlargement of an earlier work entitled How to observe geology (1835).