From David Forbes [after 11 December 1860]
Summary
Glacial action in the Andes.
Origin of Chilean sheep.
Varieties of S. American horses.
| Author: | David Forbes |
| Addressee: | Charles Robert Darwin |
| Date: | [after 11 Dec 1860] |
| Classmark: | DAR 164: 150 |
| Letter no: | DCP-LETT-2621 |
