From:
Andrew Crombie Ramsay
To:
Charles Robert Darwin
Date:
27 Dec 1871
Source of text:
DAR 176: 17
Summary:
Sends description and measurements of the 18th century courtyard pavement of his house, the stones of which have sunk as a result of earthworm action [see Earthworms, pp. 192–3].
Contributor:
Darwin Correspondence Project