Introduction; 1. Habits of worms; 2. Habits of worms–continued; 3. The amount of fine earth brought up by worms to the surface; 4. The part which worms have played in the burial of ancient buildings; 5. The action of worms in the denudation of the land; 6. The denudation of the land–continued; 7. Conclusion; Index.
The result of many years of experimentation and observation by Darwin in the open-air laboratory of his own garden.
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