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1860-1869::1867::03::25 in date 
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From:
John Lubbock, 4th baronet and 1st Baron Avebury
To:
Charles Robert Darwin
Date:
25 Mar 1867
Source of text:
DAR 170: 56
Summary:

Discusses the practice of exogamy; asks if any animals have an instinctive repugnance to inbreeding.

Contributor:
Darwin Correspondence Project
From:
Benjamin Clarke
To:
Charles Robert Darwin
Date:
25 Mar 1867
Source of text:
DAR 161: 157, 159
Summary:

Thanks for subscription.

Reports experiments with wheat.

Sends notes on producing varieties by pruning.

Contributor:
Darwin Correspondence Project