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Rafbækur
Report on the Value of the Dix River as a Source of Water Power: Field Work Done in 1910-'11, Volume 21
Ókeypis
Upper Ordovician Faunas in Ontario and Quebec
Ókeypis
Preliminary Notes on Cincinnatian and Lexington Fossils of Ohio, Indiana, Kentucky and Tennessee
Ókeypis
Upper Ordovician Formations in Ontario and Quebec
Ókeypis
The Silurian, Devonian and Irvine Formations of East-central Kentucky
Ókeypis
Preliminary Report on the Waverlian Formations of East Central Kentucky and Their Economic Values: Issue 16
Ókeypis
Geology of the Narragansett Basin
Ókeypis