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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 |
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 |
