From:
Charles Robert Darwin
To:
John Jenner Weir
Date:
29 Feb [1868]
Source of text:
Field Museum of Natural History, Chicago
Summary:
JJW’s note on birds was one of the most interesting CD has ever received. Asks several questions. CD is puzzled by cases of magpies whose mates were killed but who always immediately found others.
Alexander Wallace denies any effect of colour in sexual selection among Lepidoptera.
Contributor:
Darwin Correspondence Project