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Darwin Correspondence Project

From John Ball   28 November 1879

The transcript of this letter is not yet available online.

Summary

Thanks CD for noticing some difficulties in his hypothesis. Concedes that there is no proof that higher plants are more intolerant of carbon dioxide than lower plants. Argues that the main difference between the lowlands and the high mountains in Palaeozoic times would be the much greater climatic fluctuations that would occur on the mountains. Discusses carbon dioxide diffusion in the Palaeozoic atmosphere. Thinks that the large number of species and genera peculiar to high mountains favours the assumption that "their diffusion must date from a geologically remote period" [see ML 2: 20–2].

Summary

Thanks CD for noticing some difficulties in his hypothesis. Concedes that there is no proof that higher plants are more intolerant of carbon dioxide than lower plants. Argues that the main difference between the lowlands and the high mountains in Palaeozoic times would be the much greater climatic fluctuations that would occur on the mountains. Discusses carbon dioxide diffusion in the Palaeozoic atmosphere. Thinks that the large number of species and genera peculiar to high mountains favours the assumption that "their diffusion must date from a geologically remote period" [see ML 2: 20–2].

Letter details

Letter no.
DCP-LETT-12335
From
John Ball
To
Charles Robert Darwin
Sent from
Nice
Source of text
DAR 160: 36
Physical description
4pp

Please cite as

Darwin Correspondence Project, “Letter no. 12335,” accessed on 16 October 2019, https://www.darwinproject.ac.uk/letter/DCP-LETT-12335.xml

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