From A. D. Austin 25 July 1878
Summary
Idea has struck him that might be of use to CD: that rapid changes during growth as in some plants and in insect metamorphosis may bear analogy to the slower changes resulting in the formation of new varieties.
| Author: | Albert Duncan Austin |
| Addressee: | Charles Robert Darwin |
| Date: | 25 July 1878 |
| Classmark: | DAR 159: 129 |
| Letter no: | DCP-LETT-11630 |
