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Speleology

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geology and hydrology

Cohn, Edwin Joseph

Cohn, Edwin Joseph

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American biochemist

Bell System

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American telephone system

P’yŏngsŏng

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North Korea

Niagara Frontier

Niagara Frontier

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recreation and industrial area, New York

Google Earth

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Definition & Facts

H. L. Hunley

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History, Recovery, & Facts

Borna Disease

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pathology

Kuruman

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South Africa

Gould, Arthur Joseph

Gould, Arthur Joseph

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Welsh rugby player

Meteorite Shower

Meteorite Shower

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astronomy

Hydrogenation

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chemical reaction

Raipur

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India

Annaba

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Algeria

Snead, Sam

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Biography, Championships, & Facts

Kyrgyzstan

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People, Language, & History