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Darwin, C. R. in correspondent 
Tristram, H. B. in correspondent 
1860-1869::1868::06 in date 
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From:
Charles Robert Darwin
To:
Henry Baker Tristram
Date:
4 June 1868
Source of text:
Private collection
Summary:

Asks about camouflage of birds in the Sahara desert.

Contributor:
Darwin Correspondence Project
From:
Henry Baker Tristram
To:
Charles Robert Darwin
Date:
6 June 1868
Source of text:
DAR 178: 193
Summary:

Will answer CD’s queries when he returns home in a month.

Contributor:
Darwin Correspondence Project