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From J. F. Simpson 4 November 1881
Summary
Relates some of his observations on the behaviour and activity of earthworms.
| Author: | James Frederick Simpson |
| Addressee: | Charles Robert Darwin |
| Date: | 4 Nov 1881 |
| Classmark: | DAR 177: 167 |
| Letter no: | DCP-LETT-13459 |
From J. F. Simpson 8 November 1881
Summary
Thanks CD for his letter and gives permission to use his observations, although not considering himself a worthy authority. Enlarges upon some of his previous observations.
| Author: | James Frederick Simpson |
| Addressee: | Charles Robert Darwin |
| Date: | 8 Nov 1881 |
| Classmark: | DAR 177: 168 |
| Letter no: | DCP-LETT-13474 |
