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
From:
Charles Robert Darwin
To:
Archibald Geikie
Date:
30 Dec 1871
Source of text:
DAR 185: 133
Summary:
Is obliged for valuable letter [see 8123] and encloses queries about the manner of gradual obliteration of ridges or furrows in old pasture lands in various parts of England.
Gives details of his experiment to test his observations of the downward flow of worm-casts.
Refers to [Lyon] Playfair, [A. C.] Ramsay, and AG’s edition of [J. B.] Jukes, [A student’s manual of geology, 3d ed., 1872].
Contributor:
Darwin Correspondence Project
