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Gray, G. R. in author 
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From:
George Robert Gray
To:
Charles Robert Darwin
Date:
2 Apr 1868
Source of text:
DAR 84.1: 90–1
Summary:

On the changes in plumage of scarlet ibis at the zoo in breeding season.

Contributor:
Darwin Correspondence Project
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From:
George Robert Gray
To:
Charles Robert Darwin
Date:
8 Apr 1868
Source of text:
DAR 84.1: 92
Summary:

Difference between sexes of Ibis rubra; change in plumage.

Contributor:
Darwin Correspondence Project
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From:
George Robert Gray
To:
Charles Robert Darwin
Date:
9 July 1869
Source of text:
DAR 96: 69v
Summary:

Asks for a testimonial.

Contributor:
Darwin Correspondence Project
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