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Darwin Correspondence Project

From J. H. Gilbert   9 January 1882

The transcript of this letter is not yet available online.

Summary

Thanks CD for Earthworms.

Discusses the problem of accounting for difference between nitrogen in permanent grassland and ordinary arable soil. Finds castings of earthworms rich in nitrogen. Asks CD if his observations enable him to explain the source. If from below top-soil, it would be a considerable manuring.

Summary

Thanks CD for Earthworms.

Discusses the problem of accounting for difference between nitrogen in permanent grassland and ordinary arable soil. Finds castings of earthworms rich in nitrogen. Asks CD if his observations enable him to explain the source. If from below top-soil, it would be a considerable manuring.

Letter details

Letter no.
DCP-LETT-13605
From
Joseph Henry Gilbert
To
Charles Robert Darwin
Sent from
Harpenden
Source of text
DAR 165: 45
Physical description
8pp †

Please cite as

Darwin Correspondence Project, “Letter no. 13605,” accessed on 20 August 2018, http://www.darwinproject.ac.uk/DCP-LETT-13605

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