From:
George Howard Darwin
To:
Charles Robert Darwin
Date:
30 Dec 1871
Source of text:
DAR 162: 64
Summary:
Varying depth of top-soil in a ridge-and-furrow field with a depression.
Contributor:
Darwin Correspondence Project
From:
Erasmus Galton
To:
Charles Robert Darwin
Date:
30 Dec 1871
Source of text:
DAR 165: 5
Summary:
After reading Descent sends two instances of men and animals using the same muscles to express similar emotional states.
Contributor:
Darwin Correspondence Project
