| Publication Type: | Journal Article |
| Year of Publication: | 1901 |
| Authors: | H. T. Higgins |
| Journal: | Proceedings of the National Academy of Sciences of Philadelphia |
| Volume: | 53 |
| Issue: | 1 |
| Pagination: | 126 - 141 |
| Date Published: | 1901/// |
| Publication Type: | Journal Article |
| Year of Publication: | 1901 |
| Authors: | H. T. Higgins |
| Journal: | Proceedings of the National Academy of Sciences of Philadelphia |
| Volume: | 53 |
| Issue: | 1 |
| Pagination: | 126 - 141 |
| Date Published: | 1901/// |