The formation of vegetable mould through the action of worms; with observations on their habits (1882)

London : John Murray, 1882. First edition. Seventh thousand (corrected). Octavo, publisher’s blind blocked dark green cloth (edges rubbed, small tears to head and foot of spine), spine lettered in gilt; endpapers rubbed, pp. [ii], viii, 328, [2] (adv.); 15 text illustrations, index; original cloth; uncut; light foxing to preliminaries (inscription on title-page & long inscription on first blank); a good copy; scarce.

Darwin’s last work, in which he reverts to his earlier geological interests while still retaining the theme common throughout his later work: gradual change over long periods can lead to large and surprising consequences. It was very successful, selling faster than Origin of species (1859).

Freeman 1364. With corrections and additions by Francis Darwin.