| Publication Type: | Journal Article |
| Year of Publication: | 1881 |
| Authors: | E. Parfitt |
| Journal: | Report and Transaction of the Devonshire Association of Advance Science |
| Volume: | 13 |
| Pagination: | 241-292 |
| Publication Type: | Journal Article |
| Year of Publication: | 1881 |
| Authors: | E. Parfitt |
| Journal: | Report and Transaction of the Devonshire Association of Advance Science |
| Volume: | 13 |
| Pagination: | 241-292 |