| Publication Type: | Journal Article |
| Year of Publication: | 1881 |
| Authors: | W. A. Herdman |
| Journal: | Proceedings of the Royal Society of Edinburg, Sess. 1880-81 |
| Volume: | 11 |
| Pagination: | 233-240 |
| Publication Type: | Journal Article |
| Year of Publication: | 1881 |
| Authors: | W. A. Herdman |
| Journal: | Proceedings of the Royal Society of Edinburg, Sess. 1880-81 |
| Volume: | 11 |
| Pagination: | 233-240 |