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 1–2 of 2 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.