Freeman Bibliographical Database
| Identifier: | A5369 |
| Date: | 1868 |
| Concise reference: | Newman, Edward. 1868. Letters on variation in Lepidoptera: Letter the third.—Pairs of species. Zoologist 2d ser. 4: 1036-1048. [Darwin Pamphlet Collection] |
| Identifier: | A5369 |
| Date: | 1868 |
| Concise reference: | Newman, Edward. 1868. Letters on variation in Lepidoptera: Letter the third.—Pairs of species. Zoologist 2d ser. 4: 1036-1048. [Darwin Pamphlet Collection] |