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Economic Geology of the Beaver Quadrangle, Pennsylvania
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Annals of Cambridge
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The Cambrian Rocks of Pennsylvania
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Contributions to the Cretaceous Paleontology of the Pacific Coast
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Glossary of Botanical Terms Commonly Used in Range Research
This bibliography was first issued in mimeographed form in August, 1930, and was used at the meeting of the American Country Life Association at the thirteenth National Country Life Conference, Madison, Wis., October, 1930.
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Directory of Professional Workers in State Agricultural Experiment Stations and Other Cooperating State Institutions
Set includes revised editions of some issues.
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“Walker's” British Atlas
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Black's Guide to England and Wales
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