B. C · **O.C.** · P. B. C. · P. C.
| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| A Dictionary of the Fossils of Pennsylvania and Neighboring States Named in the Reports and Catalogues of the Survey ... | 978-1-145-77542-8 (1-145-77542-X) | 2010 | |
| Report of Progress in ..., Part 6 | 978-1-142-75829-5 (1-142-75829-X) | 2010 | Pennsylvania. State Geologist (1874-1890 |