| Publication Type: | Journal Article |
| Year of Publication: | 1901 |
| Authors: | W. E. Ritter |
| Journal: | Proceedings of the Washington Academy of Sciences |
| Volume: | 3 |
| Start Page: | 225 |
| Pagination: | 225-266 |
| Publication Type: | Journal Article |
| Year of Publication: | 1901 |
| Authors: | W. E. Ritter |
| Journal: | Proceedings of the Washington Academy of Sciences |
| Volume: | 3 |
| Start Page: | 225 |
| Pagination: | 225-266 |