Freeman Bibliographical Database
| Identifier: | A4078 |
| Date: | 1881 |
| Concise reference: | Edwards, William Henry. 1881. On the number of molts of butterflies, with some history of the moth Callosamia promethea. Psyche 3: 159-161. [Darwin Pamphlet Collection] |


| Identifier: | A4078 |
| Date: | 1881 |
| Concise reference: | Edwards, William Henry. 1881. On the number of molts of butterflies, with some history of the moth Callosamia promethea. Psyche 3: 159-161. [Darwin Pamphlet Collection] |