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Darwin Correspondence Project

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Darwin Correspondence Project
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To Asa Gray   16 October [1862]


Lythrum salicaria is coming out clear.

Would be glad of Nesaea seed.

Is disappointed with Melastoma, but is sure there is something curious to be made out.

His experiments with poisons on Drosera lead him to conclude that it possesses something analogous to nervous matter.

Comments on natural hybrids of Verbascum.

Deplores the Civil War and the feelings it has fostered in Britain.

Author:  Charles Robert Darwin
Addressee:  Asa Gray
Date:  16 Oct [1862]
Classmark:  Gray Herbarium of Harvard University (81)
Letter no:  DCP-LETT-3766

Matches: 1 hit

  • 1872 ( LL 3: 322); his findings were published in 1875 as Insectivorous plants. See letter to J.  D.  Hooker, 6 October [1862] , and letter from J.  D.   …

To Asa Gray   15 April [1867]


Thanks AG for his trouble about expression queries; wishes he had thought earlier of having them printed.

Is "plodding on" correcting Variation

and getting "a little amusement" from plant experiments. Oxalis is trimorphic like Lythrum.

Is continuing his experiments on seedling vigour.

Has heard hybrid potatoes can be produced by joining halves of different tubers.

Author:  Charles Robert Darwin
Addressee:  Asa Gray
Date:  15 Apr [1867]
Classmark:  Gray Herbarium of Harvard University (97)
Letter no:  DCP-LETT-5442

Matches: 1 hit

  • … published in 1872. CD refers to Joseph Dalton Hooker ; see letter from J.  D.  Hooker, 13  …

To Asa Gray   8 January 1873


Has received, through AG, a letter on Dionaea [from W. M. Canby] which has greatly interested him. CD asks AG to question his correspondent on whether it catches large or small insects.

Mary Treat will observe Drosera filiformis.

Author:  Charles Robert Darwin
Addressee:  Asa Gray
Date:  8 Jan 1873
Classmark:  Archives of the Gray Herbarium, Harvard University (102)
Letter no:  DCP-LETT-8728

Matches: 1 hit

  • J.  D.  Hooker, [after 6 July 1867] ( Correspondence vol.  15). The letter was chiefly concerned with Dionaea muscipula (Venus fly trap). CD cited Canby for information on Dionaea in Insectivorous plants . See Correspondence vol.  20, letter from Mary Treat, 13 December 1872 , …

To Asa Gray   22 October 1872


Spiralling of tendrils.

Has worked hard on Drosera.

Is interested in tracing the "nerves" of Dionaea which follow the vascular bundles. Finds he can paralyse half of the leaf by pricking it at a certain point.

Wishes AG to carry out two experiments on D. filiformis.

Has received AG’s Dubuque address [Am. J. Sci. 3d ser. 4 (1872): 282–98].

Author:  Charles Robert Darwin
Addressee:  Asa Gray
Date:  22 Oct 1872
Classmark:  Gray Herbarium of Harvard University (100)
Letter no:  DCP-LETT-8568

Matches: 1 hit

  • … to 26 October 1872 (see ‘Journal’ (Appendix II) and letter to J.  D.  Hooker, 10 October [ …
Document type
letter (4)
1862 (1)
1867 (1)
1872 (1)
1873 (1)