13 books
The Geology of Chester County: After the Surveys of Henry D. Rogers, Persifor Frazer, and Charles E. Hall (Classic Reprint)
The Geology of Pennsylvania, 1858, Vol. 1 of 2
The Geology of Pennsylvania, Vol. 1 of 2
The Geology of Pennsylvania, Vol. 1 of 2: A Government Survey (Large Text Classic Reprint)
Second Annual Report on the Geological Exploration of the State of Pennsylvania
Annual Report on the Geological Survey of Pennsylvania, Volumes 1-6
Annual Report on the Geological Survey of Pennsylvania Volume 1-6
The Edinburgh New Philosophical Journal (Volume 22); Exhibiting a View of the Progressive Discoveries and Improvements in the Sciences and the Arts
Address Delivered at the Meeting of the Association of American Geologists and Naturalists Held at Washington, May 188.4 ... with an Abstract of the Proceedings at Their Meeting.
An Account of Two Remarkable Trains of Angular Erratic Blocks, in Berkshire, Massachusetts, with an Attempt at an Explanation of the Phenomena.
The Edinburgh New Philosophical Journal
Description of the Geology of the State of New Jersey
Annual Report on the Geological Survey of Pennsylvania
