• 2 Map Library (Robinson)
• 1 Geology and Geophysics Library (Leith)
• 1 Wisconsin Historical Society Archives

• 2 Geology
• 1 Discovery and exploration
• 1 Geology, Stratigraphic
• 1 Glaciation

• 2 Grønlands geologiske undersøgelse
• 1 Escher, A
• 1 Geodætisk institut (Denmark)
• 1 Kongelige Geografiske Selskab
• 1 Kümmerly + Frey
• 1 Lynge, W
• 1 Weidick, Anker

• 3 English

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