London: John Murray, 1871. First edition, first issue of both volumes (with "transmitted" the first word on p. 297 in the first volume; in the second, the printer's note on the verso of the half-title, errata on title verso, and the postscript leaf after p. viii. Both volumes have the January ads). Octavo, two volumes, original green cloth with gilt titles and tooling to the spine. In excellent condition with rubbing to the extremities with the spine gilt bright. The book, in its first edition, contains two parts, the descent of man itself, and selection in relation to sex. The word 'evolution' occurs [Volume I, p. 2] for the first time in any of Darwin's works" (Freeman, 128-29). It also contains Darwin's important (and then controversial) statement that the extinct ancestors of Homo Sapiens would have been classified among the primates. "One of the ten most significant books ever written" (Sigmund Freud). Freeman 937; Garrison-Morton 170; Printing and the…