8vo. pp. xx, 278. + 6(ads). with half-title. 3 folding maps (2 partly coloured). original cloth (light foxing to outer leaves, outer edge of map darkened & tatty & 1 short split along fold no loss). Second Edition, Revised. First published in 1842, this is the first of the three parts of Darwin's geological results of the Beagle voyage. This edition "was extensively revised and largely rewritten in the light of the findings of Dana and Jukes." (Freeman) Freeman 275.