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Nicols, Arthur in correspondent 
1870-1879::1872 in date 
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From:
Robert Arthur (Arthur) Nicols
To:
Charles Robert Darwin
Date:
20 Aug 1872
Source of text:
DAR 172: 58
Summary:

Offers observations on expression in Australian dogs, since he knows CD plans to publish on the subject.

Contributor:
Darwin Correspondence Project
From:
Charles Robert Darwin
To:
Robert Arthur (Arthur) Nicols
Date:
[after 20 Aug 1872?]
Source of text:
Nicols 1885 , p. 192
Summary:

Can believe animals communicate together, but does not know how.

Contributor:
Darwin Correspondence Project
From:
Robert Arthur (Arthur) Nicols
To:
Charles Robert Darwin
Date:
23 Aug 1872
Source of text:
DAR 172: 59
Summary:

Doubts reported cases of homing instinct in dogs.

Contributor:
Darwin Correspondence Project