The Formation of Vegetable Mould Through the Action of WormsNote 227 — Chapter V · THE ACTION OF WORMS IN THE DENUDATION OF THE LAND.Reading editionPerrier, ‘Archives de Zoolog. expér.’ tom. iii. 1874, p. 419.◇Copy noteReturn to CHAPTER V. THE ACTION OF WORMS IN THE DENUDATION OF THE LAND.