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© 1896 Nature Publishing Group

Recent Work of the Geological Survey of the United States

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Page 1: Recent Work of the Geological Survey of the United States

© 1896 Nature Publishing Group

Page 2: Recent Work of the Geological Survey of the United States

© 1896 Nature Publishing Group

Page 3: Recent Work of the Geological Survey of the United States

© 1896 Nature Publishing Group

Page 4: Recent Work of the Geological Survey of the United States

© 1896 Nature Publishing Group

Page 5: Recent Work of the Geological Survey of the United States

© 1896 Nature Publishing Group

Page 6: Recent Work of the Geological Survey of the United States

© 1896 Nature Publishing Group