The Formation of Vegetable Mould Through the Action of WormsNote 138a — Chapter III · THE AMOUNT OF FINE EARTH BROUGHT UP BY WORMS TO THE SURFACE.Reading edition‘Trans. of the New Zealand Institute,’ vol. xii., 1880, p. 152.◇Copy noteReturn to CHAPTER III. THE AMOUNT OF FINE EARTH BROUGHT UP BY WORMS TO THE SURFACE.