| Publication Type: | Journal Article |
| Year of Publication: | 1951 |
| Authors: | D. P. Abbott |
| Journal: | Journal of the Washington Academy of Sciences |
| Volume: | 41 |
| Pagination: | 302-307 |
| Publication Type: | Journal Article |
| Year of Publication: | 1951 |
| Authors: | D. P. Abbott |
| Journal: | Journal of the Washington Academy of Sciences |
| Volume: | 41 |
| Pagination: | 302-307 |