| Publication Type: | Journal Article |
| Year of Publication: | 1855 |
| Authors: | T. A. Conrad |
| Journal: | Proceedings of the Academy of Natural Sciences of Philadelphia |
| Volume: | 7 |
| Pagination: | 268–269 |
| URL: | http://archive.org/details/proceedingsofac07acaduoft |
| Publication Type: | Journal Article |
| Year of Publication: | 1855 |
| Authors: | T. A. Conrad |
| Journal: | Proceedings of the Academy of Natural Sciences of Philadelphia |
| Volume: | 7 |
| Pagination: | 268–269 |
| URL: | http://archive.org/details/proceedingsofac07acaduoft |