Collection Materials
Items below represent materials used in the exhibit from the University of Minnesota Libraries collections.
![http://gallery.lib.umn.edu/archive/original/ffb5956c8a3cadba0c3225e2e1b79b49.jpg http://gallery.lib.umn.edu/archive/original/ffb5956c8a3cadba0c3225e2e1b79b49.jpg](https://gallerytemp.reclaim.hosting/files/square_thumbnails/d57ddaa1659a0f8ced27deff944682fc.jpg)
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.
![http://gallery.lib.umn.edu/archive/original/6a33a1f89affd2d5dd22014e725b1c7d.jpg http://gallery.lib.umn.edu/archive/original/6a33a1f89affd2d5dd22014e725b1c7d.jpg](https://gallerytemp.reclaim.hosting/files/square_thumbnails/14cf1b87b9f1524d6a0e30d01a7c6065.jpg)
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.
![http://gallery.lib.umn.edu/archive/original/a4045723918580edb8e7f62b49549698.jpg http://gallery.lib.umn.edu/archive/original/a4045723918580edb8e7f62b49549698.jpg](https://gallerytemp.reclaim.hosting/files/square_thumbnails/761d2f2ba563ad3ded19c351098955d6.jpg)
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.
![http://gallery.lib.umn.edu/archive/original/2389aeabd64b5a0152ebffa0809cd3d0.jpg http://gallery.lib.umn.edu/archive/original/2389aeabd64b5a0152ebffa0809cd3d0.jpg](https://gallerytemp.reclaim.hosting/files/square_thumbnails/20d49d13b9876d28ee64c8cdc20c2a0b.jpg)
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.
![http://gallery.lib.umn.edu/archive/original/799cb584c5043582094ea9c0169daa08.jpg http://gallery.lib.umn.edu/archive/original/799cb584c5043582094ea9c0169daa08.jpg](https://gallerytemp.reclaim.hosting/files/square_thumbnails/d24332a83873b1f258b5455190e19d1c.jpg)
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.
![http://gallery.lib.umn.edu/archive/original/0de0eba11f73e01834b4766498cf3231.jpg http://gallery.lib.umn.edu/archive/original/0de0eba11f73e01834b4766498cf3231.jpg](https://gallerytemp.reclaim.hosting/files/square_thumbnails/da0412d587f0bacd950870f18c99e1f2.jpg)
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.
![http://gallery.lib.umn.edu/archive/original/0f7655479dca07f548eb459c89bb59e4.jpg http://gallery.lib.umn.edu/archive/original/0f7655479dca07f548eb459c89bb59e4.jpg](https://gallerytemp.reclaim.hosting/files/square_thumbnails/2124ea13cae94fcb87227e550fc6be68.jpg)
U.S. War Department. Technical Manual: Topographic Drafting, no. 5-230. Washington, D.C.: U.S. Government Printing Office, 1940.
![http://gallery.lib.umn.edu/archive/original/e29213a00128366708d7af4b6b8233b2.jpg http://gallery.lib.umn.edu/archive/original/e29213a00128366708d7af4b6b8233b2.jpg](https://gallerytemp.reclaim.hosting/files/square_thumbnails/68ab088584ca2c14e7f36a730f933276.jpg)
U.S. Dept. of the Army. Topographic Symbols, Field Manual 21-31. Washington, D.C.: U.S. Government Printing Office, 1961.