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From:
Charles Robert Darwin
To:
Edward Blyth
Date:
23 Feb [1867]
Source of text:
McGill University Library, Department of Rare Books
Summary:

Many of EB’s remarks about Origin [4th ed. (1866)] are new to CD.

Thinks of writing a short essay on man.

Struck by EB’s remarks about orang. They are similar to Carl Vogt’s remarks on origin of man from distinct ape families.

Thinks similarity of orang to Malay must be accidental.

Will send Variation when it is published.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Paul Rohrbach
Date:
23 Feb [1867]
Source of text:
Staatsbibliothek zu Berlin – Preußischer Kulturbesitz (Slg. Darmstaedter Lc 1859: Darwin, Charles, Bl. 228–229 )
Summary:

Thanks PR for his memoir on Epipogium ["Über den Blüthenbau von Epipogium" (1866)]. The structure and manner of fertilisation are new to CD;

he has long suspected that the classification of orchids requires considerable modification.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Alfred Russel Wallace
Date:
23 Feb 1867
Source of text:
Marchant ed. 1916, 1: 178
Summary:

Asks why caterpillars are sometimes beautifully coloured. It poses a problem for view that sexual selection is the explanation of colours of male butterflies.

More on mimetic butterflies.

Contributor:
Darwin Correspondence Project
Text Online
From:
Ferdinand von Mueller
To:
George Bentham
Date:
23 February 1867
Source of text:
RBG Kew, Kew correspondence, Australia, Mueller, 1858-70, ff. 256-7
Summary:

No summary available.

Contributor:
Correspondence of Ferdinand von Mueller Project
Text Online
From:
Charles Robert Darwin
To:
Alfred Russel Wallace
Date:
23 February [1867]
Source of text:
  • Natural History Museum, London: NHM WP1/9/58
  • Marchant, J. (Ed.). (1916). In: Alfred Russel Wallace; Letters and Reminiscences. Vol. 1. London & New York: Cassell & Co. [p. 178]
  • Wallace, A. R. (1908). In: My Life: a Record of Events and Opinions (2nd edition). London: Chapman & Hall. [pp. 227-228]
Summary:

Asking ARW's opinion, at H. W. Bates' suggestion, on the reason for the bright colouration of some caterpillars; says his health has been bad.

Contributor:
Alfred Russel Wallace Correspondence Project