From:
Lucy Caroline Wedgwood; Lucy Caroline Harrison
To:
Charles Robert Darwin
Date:
20 Jan [1872]
Source of text:
DAR 94: 1b
Summary:
Gives results of probing worm-holes with wire.
Contributor:
Darwin Correspondence Project
Showing 1–4 of 4 items
Gives results of probing worm-holes with wire.
Describes earthworm experiments. She has measured depth of mould in various locales, e.g., on ridges and furrows of an old ploughed field.
P.S. Information on earthworm activity on chalk downs, including two rough sketches for CD.
Worm-casts on a ridged hill.