From:
Charles Robert Darwin
To:
Henry Doubleday
Date:
8 Jan [1857]
Source of text:
Dr Heather Whitney (private collection)
Summary:
Thanks for a kind note, and asks not to answer until better.
Contributor:
Darwin Correspondence Project
Showing 1–2 of 2 items
Thanks for a kind note, and asks not to answer until better.
Sends specimens of Tortrix, which illustrate the extraordinary variation of markings in two or three species. In every family of Lepidoptera there seem to be species extremely prone to vary and in some localities they vary more than in others.