To J. D. Hooker 12 August 1881
Summary
Responds to JDH on history of plant geography.
Opinion of Humboldt.
Origin of higher phanerogams.
Importance of the occurrence of south temperate forms in the Northern Hemisphere.
| Author: | Charles Robert Darwin |
| Addressee: | Joseph Dalton Hooker |
| Date: | 12 Aug 1881 |
| Classmark: | DAR 95: 524–7 |
| Letter no: | DCP-LETT-13288 |
