From:
Raphael Meldola
To:
Charles Robert Darwin
Date:
21 Sept 1877
Source of text:
DAR 171: 123
Summary:
Encloses Fritz Müller’s letter.
Is exhibiting butterflies in which variations in the female show a finely graded series. Believes dimorphism can be explained by the selection of the extremes of such a series and the consequent extinction of the intermediates.
Contributor:
Darwin Correspondence Project