From Alexander Agassiz 16 April 1881
Summary
Is mapping coral distribution on the Tortugas reef. His observations on the Florida peninsula suggest that it was built up from the debris of animal remains and was not elevated.
| Author: | Alexander Agassiz |
| Addressee: | Charles Robert Darwin |
| Date: | 16 Apr 1881 |
| Classmark: | G. R. Agassiz ed. 1913, pp. 281–2 |
| Letter no: | DCP-LETT-13122 |
From Alexander Agassiz 19 May 1881
Summary
Discusses the structure and formation of the Florida peninsula. Part played by marine animals in building banks on which coral can thrive.
| Author: | Alexander Agassiz |
| Addressee: | Charles Robert Darwin |
| Date: | 19 May 1881 |
| Classmark: | G. R. Agassiz ed. 1913, pp. 284–6 |
| Letter no: | DCP-LETT-13166 |
From Alexander Agassiz 22 October 1870
Summary
Asks whether he may see CD before leaving England.
| Author: | Alexander Agassiz |
| Addressee: | Charles Robert Darwin |
| Date: | 22 Oct 1870 |
| Classmark: | G. R. Agassiz ed. 1913, p. 113 |
| Letter no: | DCP-LETT-7349 |
From Alexander Agassiz [before 1 June 1871]
Summary
Instances of sexual differences in viviparous fishes, suggested by reading chapters on sexual selection [in Descent] and by Mivart’s Genesis of species.
Notes on echinoderms.
| Author: | Alexander Agassiz |
| Addressee: | Charles Robert Darwin |
| Date: | [before 1 June 1871] |
| Classmark: | DAR 69: A43–6 DAR 89: 29–31 |
| Letter no: | DCP-LETT-7415 |
From Alexander Agassiz 4 March 1872
Summary
Thanks for new [6th] edition of Origin.
Is working on Echini.
The more material he gets the less easy it is to diagnose a genus or species. Has little doubt that "classification is nothing but the most arbitrary convenient tool, depending upon the material at our command at a special time".
| Author: | Alexander Agassiz |
| Addressee: | Charles Robert Darwin |
| Date: | 4 Mar 1872 |
| Classmark: | G. R. Agassiz ed. 1913, p. 119 |
| Letter no: | DCP-LETT-8236 |
From Alexander Agassiz 9 December 1872
Summary
Thanks for Expression.
Has lost a year’s work in the fire that has devastated Boston.
| Author: | Alexander Agassiz |
| Addressee: | Charles Robert Darwin |
| Date: | 9 Dec 1872 |
| Classmark: | G. R. Agassiz ed. 1913, pp. 120–1 |
| Letter no: | DCP-LETT-8667 |
