From:
Alfred Russel Wallace
To:
Charles Robert Darwin
Date:
15 Mar [1868]
Source of text:
DAR 82: 23–4
Summary:
Coloration of butterflies; brilliantly coloured females.
Commends CD on his paper on specific differences in Primula [J. Proc. Linn. Soc. Lond. (Bot.) 10 (1869): 437–54; reprinted and revised in Forms of flowers] as a test-case proving origin of real species.
Contributor:
Darwin Correspondence Project
