| Publication Type: | Journal Article |
| Year of Publication: | 1926 |
| Authors: | B. Wade |
| Journal: | United States Geological Survey Professional Paper |
| Volume: | 137 |
| Pagination: | 1 - 272, pl. 1-72 |
| Date Published: | 1926/// |
| URL: | http://books.google.com/books?id=xovnAAAAMAAJ |