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Stiles Quadrangle

Description: Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24000
Date: 2012
Creator: Geological Survey (U.S.)
Location: 31.44 -101.56
Partner: UNT Libraries Government Documents Department

San Angelo

Description: Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:250000
Date: 1967
Creator: Geological Survey (U.S.)
Location: 31.50 -101.00
Partner: UNT Libraries Government Documents Department

San Angelo

Description: Topographic map of a portion of Texas from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:250000
Date: 1965
Creator: Geological Survey (U.S.)
Location: 31.50 -101.00
Partner: UNT Libraries Government Documents Department

Valve.

Description: Patent for a float-valve used in water-troughs for cattle and other liquid containers. It closes "when the surface of the water reaches the desired point and [opens] when the surface of the water falls below said point" (lines 14-17).
Date: January 5, 1897
Creator: Halley, Hillary H. & McCulley, Robert I.
Partner: UNT Libraries Government Documents Department

Obstetrical Supporter

Description: Patent for a obstetrical supporter. This invention is used as a harness consisting of stirrups. Illustration included.
Date: March 12, 1907
Creator: Crume, Francis Marion
Partner: UNT Libraries Government Documents Department
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