The formation of vegetable mould, through the action of worms, with observations on their habits
Darwin, Charles,
1809-1882
creator
text
book
New York
Appleton
1882
1883
ENG
First edition, 1881.
Earthworms
Humus
Soils
QL394 .D25
https://www.biodiversitylibrary.org/bibliography/20388
7298675
10.5962/bhl.title.20388
MOD