Sixth edition with additions and corrections, 37th Thousand. A later issue of the Sixth edition which was the first edition of this title to include the word “evolution”. Darwin had first used the term in ‘The Descent of Man’ in 1871. The word is used sparingly throughout but does appear twice on page 201 (in the chapter devoted to Mivart) and three times on page 424.

The sixth edition of ‘Origin of Species’ was first published in 1872 and was the last to be revised by Darwin during his lifetime. It is now regarded as the definitive expression of Darwin's theory. Compared to the previous editions, which differed from each other in only minor ways, the sixth edition was was expanded to include a refutation of George Jackson Mivart's 1871 ‘On the Genesis of Species’.

8vo., original green cloth lettered in gilt on spine. Some browning and spotting to endpapers and occasionally in the text, neat ink initials on title-page. A very good, partially unopened, copy.