From:
Oswald Heer
To:
Charles Robert Darwin
Date:
23 Mar 1875
Source of text:
DAR 166: 131
Summary:
Discusses his work [Flora fossilis Arctica, vol. 4, pt 1 (1876)].
Sends copy of [Fossile Pflanzen von Sumatra (1874)]. Comments on climate in Tertiary period, especially on Sumatra.
Comments on theory of Thomas Belt concerning climatic change in ice age.
Contributor:
Darwin Correspondence Project