From:
Thomas Davidson
To:
Charles Robert Darwin
Date:
3 May 1861
Source of text:
DAR 99: 1–2
Summary:
Sends three tables on the known geological distribution of genera and subgenera of Brachiopoda. Has been continually puzzled by intermediate forms, and is convinced that the greater number of species can be linked together. "Natura non facit saltum."
Contributor:
Darwin Correspondence Project
