From:
James Niven
To:
Francis Darwin
Date:
12 Mar 1882
Source of text:
DAR 64.2: 101–2
Summary:
Sends [for CD’s possible use] his observations on spines of fir used by worms to block burrows.
Contributor:
Darwin Correspondence Project
Sends [for CD’s possible use] his observations on spines of fir used by worms to block burrows.