Freeman Bibliographical Database
| Identifier: | A5861 |
| Date: | 1862 |
| Concise reference: | Scudder, Samuel Hubbard. 1862. On the genus Colias in North America. Proceedings of the Boston Society of Natural History 9: 103-111. [Darwin Pamphlet Collection] |


| Identifier: | A5861 |
| Date: | 1862 |
| Concise reference: | Scudder, Samuel Hubbard. 1862. On the genus Colias in North America. Proceedings of the Boston Society of Natural History 9: 103-111. [Darwin Pamphlet Collection] |