Darwin Online Manuscript Catalogue
| Identifier: | CUL-DAR251.3531 |
| Date: | [1889] |
| Name: | Henkel F W jr to Darwin George Howard |
| Attributed title: | [concerning Koch's theory of comet tails] |
| Document type: | Correspondence |
| Identifier: | CUL-DAR251.3531 |
| Date: | [1889] |
| Name: | Henkel F W jr to Darwin George Howard |
| Attributed title: | [concerning Koch's theory of comet tails] |
| Document type: | Correspondence |