| Book | Requires cookie* | ||
| 1 | Title: | Historical sketch of geological explorations in Pennsylvania and other states | |
| Creator: | Lesley, J. Peter, 1819-1903 | ||
| Publication: | Pub. by the Board of ocmmissioners for the Second geological survey, Harrisburg,1876. | ||
| Notes: | At head of title: Second geological survey of Pennsylvania: 1874-'5-'6. "The Geological society of Pennsylvania; and what it did to bring about the first Geological survey of the state": p. A29-52A. | ||
| Call #: | F11JQ P416 A | ||
| Extent: | 2 p. l., 3-200A, xxviA p. 23 cm. | ||
| Subjects: | Geological society of Pennsylvania, -- Philadelphia | Geology -- Pennsylvania | Geology -- History | ||
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