John Murray,, 1860. 8vo., Fifth Thousand, [Second Edition, Second Issue], with folding diagram, neat contemporary signature in pencil at head of title, with second pencilled signature lower down, front free endpaper a little chafed at fore-edge, three or four small fox-spots each on half-title, title and diagram; original green cloth, boards elaborately blocked in blind, gilt back, , brown endpapers, uncut, expertly recased with original endpapers preserved, a remarkably bright, fresh copy in minimally restored publisher's binding. With 32pp publisher's catalogue (dated January, 1860) bound in at end, and the binder's ticket of Edmonds & Remnants on rear paste-down. The second edition, second issue is not so named on title but simply labelled 'Fifth Thousand'; Freeman records that 3000 copies were printed following the 1250 copies of the first edition. Although Darwin considered this edition a rapid revision to meet demand, his changes are much more than mere…