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From J. H. Gilbert   5 June 1881

Summary

Invites CD to visit Rothamsted. The experimental plots are at their best "as illustrating the vast influence of external conditions on the character and results of the struggle between the numerous components of an established mixed herbage".

Author:  Joseph Henry Gilbert
Addressee:  Charles Robert Darwin
Date:  5 June 1881
Classmark:  DAR 165: 44
Letter no:  DCP-LETT-13196

From J. H. Gilbert   9 January 1882

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.

Author:  Joseph Henry Gilbert
Addressee:  Charles Robert Darwin
Date:  9 Jan 1882
Classmark:  DAR 165: 45
Letter no:  DCP-LETT-13605

From J. H. Gilbert   24 July 1875

Summary

Thiselton-Dyer has asked on CD’s behalf for results of experiments at Rothamsted on herbage of permanent meadow land. Sends report and tables of botanical analysis.

Author:  Joseph Henry Gilbert
Addressee:  Charles Robert Darwin
Date:  24 July 1875
Classmark:  DAR 165: 42
Letter no:  DCP-LETT-10090

From J. H. Gilbert   31 December 1875

Summary

Discusses fairy rings.

Author:  Joseph Henry Gilbert
Addressee:  Charles Robert Darwin
Date:  31 Dec 1875
Classmark:  Rothamsted Research (GIL13)
Letter no:  DCP-LETT-10331F

From J. H. Gilbert   6 January 1876

Summary

Thanks for a copy of Insectivorous Plants.

Author:  Joseph Henry Gilbert
Addressee:  Charles Robert Darwin
Date:  6 Jan 1876
Classmark:  Rothamsted Research (GIL13)
Letter no:  DCP-LETT-10346F

From J. H. Gilbert   4 March 1876

Summary

Discusses in detail how to prepare for experimental purposes a soil that lacks nutrients.

Author:  Joseph Henry Gilbert
Addressee:  Charles Robert Darwin
Date:  4 Mar 1876
Classmark:  Rothamsted Research (GIL13)
Letter no:  DCP-LETT-10414F

From J. H. Gilbert   9 March 1876

Summary

Sends advice on preparing and washing soil in preparation for CD’s experiments.

Author:  Joseph Henry Gilbert
Addressee:  Charles Robert Darwin
Date:  9 Mar 1876
Classmark:  Rothamsted Research (GIL13)
Letter no:  DCP-LETT-10416G

From J. H. Gilbert   22 February 1881

Summary

The laboratory has scarcely any experimental evidence on acidity of humus soil and earthworm excreta. Refers CD to some sources of information.

Author:  Joseph Henry Gilbert
Addressee:  Charles Robert Darwin
Date:  22 Feb 1881
Classmark:  DAR 165: 43
Letter no:  DCP-LETT-13063

From J. H. Gilbert   7 March 1881

Summary

Sends some books.

Author:  Joseph Henry Gilbert
Addressee:  Charles Robert Darwin
Date:  7 Mar 1881
Classmark:  Rothamsted Research (GIL13)
Letter no:  DCP-LETT-13076F
Document type
letter (9)
Author
Addressee
Darwin, C. R.[X]
Correspondent
Darwin, C. R.[X]
Gilbert, J. H.[X]
Date
1875 (2)
1876 (3)
1881 (3)
1882 (1)
letter