| Publication Type: | Journal Article |
| Year of Publication: | 1888 |
| Authors: | G. Williams Peckham, Peckham E. Gifford |
| Journal: | Transactions of the Wisconsin Academy of Sciences, Arts and Letters |
| Volume: | 7 |
| Pagination: | 1-104 |
| Publication Type: | Journal Article |
| Year of Publication: | 1888 |
| Authors: | G. Williams Peckham, Peckham E. Gifford |
| Journal: | Transactions of the Wisconsin Academy of Sciences, Arts and Letters |
| Volume: | 7 |
| Pagination: | 1-104 |