Collection Materials
Items below represent materials used in the exhibit from the University of Minnesota Libraries collections.
U.S. Dept. of the Interior. Topographic Instructions of the United States Geological Survey: Color-Separation Scribing, Book 4, Chapters 4B1-4B3. Washington, D.C.: U.S. Government Printing Office, 1961.
U.S. Dept. of the Interior. Topographic Instructions of the United States Geological Survey: Photogrammetric Rectification, Book 3, Chapter 3C3. Washington, D.C.: U.S. Government Printing Office, 1961.
U.S. Dept. of the Interior. Topographic Instructions of the United States Geological Survey: Kelsh Plotter Procedures, Book 3, Chapter 3F5. Washington, D.C.: U.S. Government Printing Office, 1960.
U.S. Dept. of the Interior. Topographic Instructions of the United States Geological Survey: ER-55 Plotter Procedures, Book 3, Chapter 3F6. Washington, D.C.: U.S. Government Printing Office, 1961.
U.S. Dept. of the Interior. Topographic Instructions of the United States Geological Survey: Multiplex Plotter Procedures, Book 3, Chapter 3F4. Washington, D.C.: U.S. Government Printing Office, 1960.
U.S. Dept. of the Interior. Topographic Instructions of the United States Geological Survey: Planimetric Map Compilation With Trimetrogon Photographs, Book 3, Chapter 3G1. Washington, D.C.: U.S. Government Printing Office, 1960.
U.S. War Department. Technical Manual: Topographic Drafting, no. 5-230. Washington, D.C.: U.S. Government Printing Office, 1940.
U.S. Dept. of the Army. Topographic Symbols, Field Manual 21-31. Washington, D.C.: U.S. Government Printing Office, 1961.