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Text Online
From:
Herbert Spencer
To:
Alfred Russel Wallace
Date:
1? April 1874
Source of text:
British Library, The: BL Add. 46434 f. 359
Summary:

No summary available.

Contributor:
Alfred Russel Wallace Correspondence Project
From:
Herbert Spencer
To:
Charles Robert Darwin
Date:
11 Nov 1874
Source of text:
DAR 177: 233
Summary:

Wishes to know where, in his works, CD refers to some particular behaviour in dogs.

Mentions the sensitivity of cirripedes to passing shadows.

Contributor:
Darwin Correspondence Project