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From:
Charles Robert Darwin
To:
Asa Gray
Date:
4 Aug [1863]
Source of text:
Gray Herbarium of Harvard University (83)
Summary:

Anticipated AG’s attitude on design in orchids. Does he not think that the variations that gave rise to fancy pigeon varieties were accidental?

Has been working hard at Lythrum

and spontaneous movements of tendrils.

Defends Drosera as a "sagacious animal" but does not know whether he will ever publish on it.

Comments on political situation in U. S.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Alphonse de Candolle
Date:
4 Aug [1863]
Source of text:
Archives de la famille de Candolle (private collection)
Summary:

Asks AdeC to observe two species of Lythrum to see whether they are dimorphic as stated by Vaucher. CD can find no trace of this in dried specimens he has examined; "if either species present any difference in length of pistil and stamens, it is most likely that three forms should be presented".

Contributor:
Darwin Correspondence Project
From:
F. Gough
To:
Sir John Herschel
Date:
[4 August 1863]
Source of text:
RS:HS 9.109
Summary:

His note and the maps have arrived safely. Has made the necessary arrangements for the night of the 10th.

Contributor:
John Herschel Project