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Spencer, Herbert in correspondent 
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From:
Charles Robert Darwin
To:
Herbert Spencer
Date:
31 Oct [1873]
Source of text:
DAR 147: 486
Summary:

Discusses adaptations in flowers and their heritability.

Mentions advertisements for HS’s book [? Study of sociology (1873)].

Thought HS would have profited by principle that a character appearing late in life is inherited at same age.

Contributor:
Darwin 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