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  1. Title: Field trip guidebook for the glacial geology of the Laurentide divide area, St Louis and Lake Counties, Minnesota, GB-18, Plate 2

    Contributors:

    Summary: Back, Glacial Geomorphology (landforms) of the Laurentian Divide Area, St. Louis and Lake Counties, Minnesota, scale 1:250,000.

  2. Title: Field trip guidebook for the glacial geology of the Laurentide divide area, St Louis and Lake Counties, Minnesota, GB-18, Plate 1

    Contributors:

    Summary: Front, Glacial Geomorphology (landforms) of the Laurentian Divide Area, St. Louis and Lake Counties, Minnesota, scale 1:250,000.

  3. Title: San Miguel, Azores, 1844

    Contributors:

    Summary: (W 26°00ʻ--W 25°00ʻ/N 38°00ʻ--N37°35ʻ). "Large corrections June 1873"--center below neat line & "Small corrections XII-82 ... X-06"--lower left. "London published ... " "Sold by J.D. Potter, Agent for the Admiralty Charts, 145 Minories." Relief shown by hachures, soundings, and spot heights. Includes 3 cross sections and 3 insets: Caldeira das sete cidades, [scale approximately 1:32,000] -- Ponta Delgada, [scale approximately 1:10,000]-- Villa Franca road, [scale approximately 1:20,000]. 46 x 60 centimeters Scale not given. General Map Collection

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