From Daniel Mackintosh 8 December [1867]
Summary
Thanks CD for information on inclined terraces in S. America, which DM thinks applies to the chalk downs of S. England. CD’s definition that the sea widens and fresh water deepens is key to the subject.
| Author: | Daniel Mackintosh |
| Addressee: | Charles Robert Darwin |
| Date: | 8 Dec [1867] |
| Classmark: | DAR 171: 6 |
| Letter no: | DCP-LETT-5711 |
