The Formation of Vegetable Mould Through the Action of Worms, with observations on their habits

The Formation of Vegetable Mould Through the Action of Worms, with observations on their habits

by Charles Darwin
     
 

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Darwin in his Introduction states the following: "The share which worms have taken in the formation of the layer of vegetable mould, which covers the whole surface of the land in every moderately humid country, is the subject of the present volume... I was led to keep in my study during many months worms in pots filled with earth, I became interested in them, and
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