From W. D. Crotch 24 October 1871
Summary
Gives possible explanation for retention of horns throughout the winter by female reindeer.
Work on Atlantis.
| Author: | William Duppa Crotch |
| Addressee: | Charles Robert Darwin |
| Date: | 24 Oct 1871 |
| Classmark: | DAR 88: 114–15 |
| Letter no: | DCP-LETT-8031 |
From William Duppa Crotch 25 January 1861
Summary
Physiological changes in Shetland ponies and seagulls resulting from change in diet.
Reports on the discovery of eyeless beetles in cellar [i.e., not caves]. How did they get there, and whence?
| Author: | William Duppa Crotch |
| Addressee: | Charles Robert Darwin |
| Date: | 25 Jan 1861 |
| Classmark: | DAR 47: 173–4 |
| Letter no: | DCP-LETT-3052 |
From W. D. Crotch 17 November 1872
Summary
Horns of female reindeer disappear after their calves are dropped [see Descent, 2d ed., p. 503].
Lemmings in Norway.
| Author: | William Duppa Crotch |
| Addressee: | Charles Robert Darwin |
| Date: | 17 Nov 1872 |
| Classmark: | DAR 88: 116a–b |
| Letter no: | DCP-LETT-8632 |
From W. D. Crotch 14 November 1873
Summary
Sends information on shedding of reindeer horns in males and females.
Lemmings.
| Author: | William Duppa Crotch |
| Addressee: | Charles Robert Darwin |
| Date: | 14 Nov 1873 |
| Classmark: | DAR 88: 127–8 |
| Letter no: | DCP-LETT-9141 |
Document type
| letter | (5) |
Author
| Crotch, W. D. | (5) |
Addressee
| Darwin, C. R. | (5) |
Correspondent
| Crotch, W. D. | (5) |
| Darwin, C. R. | (5) |
