From:
Benjamin Dann Walsh
To:
Charles Robert Darwin
Date:
29 May 1865
Source of text:
DAR 47: 179, 179a; DAR 207: 18
Summary:
Discusses several subjects, including examples of "Unity of coloration",
the origin of gall-producing poison,
Wagner’s theory of viviparous larvae,
and stridulation in insects.
Sends a reference supporting CD’s statement in Origin that flies check propagation of horses and cattle.
Contributor:
Darwin Correspondence Project