The Formation of Vegetable Mould, through the Action of Worms, with Observations on their Habits
London, John Murray, 1881 (fourth thousand)/ 1881. 'This last book is outside the main stream of Darwin's work, and reverts to his earlier geological interests. He had indeed published a paper on mould in 1838 in the "Proceedings of the Geological Society of London" (Vol. ii, pp. 5-74-76), which he..... More



