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Sinel, Joseph in correspondent 
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From:
Charles Robert Darwin
To:
Joseph Sinel
Date:
19 July 1881
Source of text:
DAR 261.11: 13 (EH 88206065)
Summary:

Thinks hairs on moles are secondary effect like hairs on ulcerated surfaces. Suggests he not publish until he has independent evidence of reversion.

Contributor:
Darwin Correspondence Project
Text Online
From:
Joseph Sinel
To:
Alfred Russel Wallace
Date:
2 October 1903
Source of text:
Natural History Museum, London: NHM WP1/8/306
Summary:

Commenting on the protective and warning colouring of marine fauna.

Contributor:
Alfred Russel Wallace Correspondence Project