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1860-1869 in date 
Gray, G. R. in correspondent 
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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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From:
Charles Robert Darwin
To:
George Robert Gray
Date:
12 July 1869
Source of text:
The British Library (Egerton MS 2348: 232–3)
Summary:

Would be glad to send GRG a testimonial of his abilities as a naturalist, but is not qualified to express opinion on his works in ornithology or entomology.

Contributor:
Darwin Correspondence Project
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