London: John Murray, 1872. The Highly Important Sixth Edition, with additions and corrections, (thirteenth thousand), the last edition which Darwin lived to amend and revise. This copy with pleasing provenance, the copy of Anthony Traill, Provost of Trinity College Dublin. Folding lithographed diagram by W. West. 8vo, publisher's original green cloth, gilt lettered on the spine and blocked in blind in a panel design on the covers, original brown coated endpapers, all edges untrimmed. xxi, 458 pp. A very fine, handsome, bright and unmarked copy, very clean and crisp throughout, unusually so. A VERY FINE, BRIGHT AND PLEASING COPY OF THE RARE SIXTH EDITION OF 1872, THE GREATEST BIOLOGICAL WORK EVER WRITTEN. IT IS CONSIDERED RARE AND WAS ISSUED IN A QUANTITY NOT EXCEEDING 2000 COPIES. This edition includes an expanded version of "An Historical Sketch of the Recent Progress of Opinion on the Origin of Species," as well as a table of corrections. The Sixth Edition of 1872…