TY - BOOK AU - Darwin,Charles TI - Darwin on humus and the earthworm: the formation of vegetable mould through the action of worms with observations on their habits AV - QL391 D37 1945 PY - 1945/// CY - London PB - Faber and Faber KW - Earthworms KW - Humification N1 - First published in 1881 under title: The formation of vegetable mould through the action of worms ER -