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To Louis Agassiz 19 August 1868
Summary
Thanks LA for information on sexual differences in the coloration of Amazonian fish. CD was anxious to know how the sexes differed because they are unusual in that the male has the largest share in looking after ova and young.
Author: | Charles Robert Darwin |
Addressee: | Jean Louis Rodolphe (Louis) Agassiz |
Date: | 19 Aug 1868 |
Classmark: | Houghton Library, Harvard University (MS Am 1419: 278) |
Letter no: | DCP-LETT-6323 |
From Louis Agassiz 22 July 1868
Summary
LA clarifies his opposition to CD’s views, which does not blind him to the great value of CD’s original researches.
Answers CD’s questions regarding sexual coloration of Amazonian fishes and the protuberances on the head of male Geophagus and Cichla during the spawning season [see Descent, pp. 520, 529].
Author: | Jean Louis Rodolphe (Louis) Agassiz |
Addressee: | Charles Robert Darwin |
Date: | 22 July 1868 |
Classmark: | DAR 82: B78–9 |
Letter no: | DCP-LETT-6286 |
Document type
letter | (2) |
Author
Agassiz, Louis | (1) |
Darwin, C. R. | (1) |
Addressee
Agassiz, Louis | (1) |
Darwin, C. R. | (1) |