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Guettard, Jean-Étienne
(Encyclopedia)Guettard, Jean-Étienne zhän-ātyĕnˈ gĕtärˈ [key], 1715–86, French geologist, botanist, and natural historian. He was curator of the natural history collection of the French scientist René de...geology
(Encyclopedia)geology, science of the earth's history, composition, and structure, and the associated processes. It draws upon chemistry, biology, physics, astronomy, and mathematics (notably statistics) for suppor...Browse by Subject
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