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DCP-LETT-7229

From:
Thomas William Wood
To:
Charles Robert Darwin
Date:
14 June 1870
Source of text:
DAR 181: 147
Summary:

Orange-tip butterfly at rest imitates a flower.

The argus pheasant cannot be explained by natural selection.

Contributor:
Darwin Correspondence Project

DCP-LETT-7230

From:
Charles Robert Darwin
To:
Rudolf Albert von Kölliker
Date:
14 June 1870
Source of text:
DAR 146: 22
Summary:

Thanks for RAvK’s work [Anatomisch-systematische Beschreibung der Alcyonarien, pt 1, Die Pennatuliden (1870)].

Asks whether muscles to quills of porcupine are striped. Are they homologous to muscles of ordinary hairs? Could unstriped muscles develop into striped?

Contributor:
Darwin Correspondence Project

DCP-LETT-7232

From:
Ferdinand Vandeveer Hayden
To:
Charles Robert Darwin
Date:
14 June 1870
Source of text:
DAR 166: 123
Summary:

Sends maps of U. S. Far West for CD to follow explorations.

Contributor:
Darwin Correspondence Project

DCP-LETT-7233

From:
Charles Robert Darwin
To:
Unidentified
Date:
14 June [1870]
Source of text:
DAR 221.5: 43 (photocopy)
Summary:

When CD comes to London in ten days, he will "immediately call on you and explain why I cannot at once answer your question".

Contributor:
Darwin Correspondence Project
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