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To J. D. Hooker   8 October [1864]

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Summary

Huxley has answered Kölliker in Natural History Review [(1864): 566–80].

CD is correcting two of Scott’s papers; is convinced primrose and cowslip are two good species.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  8 Oct [1864]
Classmark:  DAR 115: 251
Letter no:  DCP-LETT-4630

To J. D. Hooker   22 October [1864]

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Summary

To Lyell’s chagrin, CD has come round again to A. C. Ramsay’s glacial theory.

On primrose and cowslip, CD maintains they are good species, notwithstanding Scott’s work.

CD defines species by power of remaining constant for a good long time and showing appreciable amount of difference from close species.

Author:  Charles Robert Darwin
Addressee:  Joseph Dalton Hooker
Date:  22 Oct [1864]
Classmark:  DAR 115: 252
Letter no:  DCP-LETT-4642
Document type
letter (2)
Author
Addressee
Hooker, J. D.[X]
Correspondent
Date
1864
10
08 (1)
22 (1)
letter