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Darwin Correspondence Project

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Darwin Correspondence Project
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To Asa Gray   7 December 1870

Summary

Believes AG’s cases of incipient dimorphism are due to mere variability. Has found examples in Nolana and Amsinckia; believes such variation is the basis for the development of dimorphism. Was unaware of variations in Phlox.

Sensitivity of Drosera and Dionaea.

Author:  Charles Robert Darwin
Addressee:  Asa Gray
Date:  7 Dec 1870
Classmark:  Gray Herbarium of Harvard University (90)
Letter no:  DCP-LETT-7388

Matches: 6 hits

  • … Darwin, C. R. Gray, Asa
  • … To Asa Gray   7 December 1870 …
  • … Gray Herbarium of Harvard University (90) Charles Robert Darwin Down 7 Dec 1870 Asa Gray
  • … See letter from Asa Gray, 21 November 1870 . CD was correcting the proof-sheets of …
  • … See Correspondence vol.  11, letter to Asa Gray, 20 March [1863] and n.  19; CD refers to …
  • … Correspondence vol.  17, letters from Asa Gray, 20 October 1869  and 26 and 29 October [ …

To Asa Gray   15 March [1870]

Summary

The "man-essay" [Descent] is "very interesting but very difficult".

Cat-like behaviour in dogs.

Thanks for information from Louis Agassiz;

wishes he could feel he deserves what Alexander Agassiz says of him.

Author:  Charles Robert Darwin
Addressee:  Asa Gray
Date:  15 Mar [1870]
Classmark:  Gray Herbarium of Harvard University (91)
Letter no:  DCP-LETT-7132

Matches: 6 hits

  • … Darwin, C. R. Gray, Asa
  • … To Asa Gray   15 March [1870] …
  • … Herbarium of Harvard University (91) Charles Robert Darwin Down 15 Mar [1870] Asa Gray
  • … the thread-leaved sundew, in 1869; see letter from Asa Gray, 20 October 1869  and n.  1. …
  • … CD refers to Louis Agassiz. See letter from Asa Gray, 27 February and 1 March 1870 . CD …
  • … from Asa and J.  L.  Gray, 14 February 1870. See letters from Asa and J.  L.  Gray, 14  …
Document type
letter (2)
Author
Addressee
Gray, Asa[X]
Correspondent
Date
1870
03 (1)
12 (1)