Freeman Bibliographical Database
| Identifier: | A4885 |
| Date: | 1859--1863 |
| Concise reference: | Lesquereux, Leo. 1859-1863. On some questions concerning the coal formations of North America. American Journal of Science and Arts 2d ser. 28 (1859): 21-37; 30 (1860): 63-74, 367-384; 32 (1861): 15-25, 193-205; 33 (1862): 206-216; 35 (1863): 375-386. [Darwin Pamphlet Collection] |