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1by Gumbel, Karl Wilhelm, ritter von, 1823-1898Subjects: “...Geology Germany....”
Published 1861
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6by Bohmersheim, August Bohm, edlen von, 1858-1930Subjects: “...Geology Alps....”
Published 1898
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11Subjects: “...Geology Alps....”
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17Subjects: “...Geology Alps....”
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20Subjects: “...Geology Alps....”
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