Journal of Researches into the Geology and Natural History of the Various Countries Visited by H.M.S. Beagle (The Voyage of the Beagle)

The composite Narrative, with Darwin's text as Volume III ('Journal and Remarks'), was issued as a set by May 1839; the separately-titled Journal of Researches, with new preliminary leaves and advertisements dated August 1839, reissues the same first-edition sheets under Darwin's own title and is technically the second issue rather than a new edition. A third issue, with the half-title and title leaf reprinted and dated 1840, followed and is the scarcest of the three; all three issues share the same text setting.