East Hamilton Quadrangle

Topographic map of a portion of Texas and of Louisiana from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date: 1988
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Patroon South Quadrangle

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 1:24,000
Date: 1988
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Brushy Creek Quadrangle

Topographic map of a portion of Texas and of Louisiana from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date: 1988
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Patroon North Quadrangle

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 1:24,000
Date: 1988
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Huxley Quadrangle

Topographic map of a portion of Texas and of Louisiana from the United States Geological Survey (USGS) project. The map includes towns, historic or notable sites, bodies of water, and other geologic features. Scale 1:24,000
Date: 1988
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

San Augustine East Quadrangle

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 1:24,000
Date: 1984
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

San Augustine West Quadrangle

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 1:24,000
Date: 1984
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Hurstown Quadrangle

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 1:24,000
Date: 1984
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Neuville Quadrangle

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 1:24,000
Date: 1984
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Mount Herman Quadrangle

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 1:24,000
Date: 1984
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Martinsville Quadrangle

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 1:24,000
Date: 1984
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Shelbyville Quadrangle

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 1:24,000
Date: 1984
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Center Quadrangle

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 1:24,000
Date: 1984
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Arcadia Quadrangle

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 1:24,000
Date: 1984
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Garrison East Quadrangle

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 1:24,000
Date: 1984
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Tenaha East Quadrangle

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 1:24,000
Date: 1984
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Tenaha West Quadrangle

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 1:24,000
Date: 1984
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History

Timpson Quadrangle

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 1:24,000
Date: 1984
Creator: Geological Survey (U.S.)
Object Type: Map
System: The Portal to Texas History
Improvement in Tenoning-Machines (open access)

Improvement in Tenoning-Machines

Patent for an improvement in tenoning-machines, including saws, gauges, flanges, and hinged plates.
Date: April 18, 1871
Creator: Bourland, Melton S.
Object Type: Patent
System: The Portal to Texas History
Improvement in Saw-Set. (open access)

Improvement in Saw-Set.

Patent for an invention "which can be used for setting the teeth of all kinds of saws by hand, and without requiring and intricate machinery" (lines 15-18). The patent includes instructions and an illustration.
Date: February 15, 1870
Creator: Harris, H. A.
Object Type: Patent
System: The Portal to Texas History
Improvement in Motors for Operating Churns. (open access)

Improvement in Motors for Operating Churns.

Patent for "a simple and effective motive power for operating the dashers of churns; and it consists of a suitable frame-work provided with a fly-wheel, operated by a pitman attached to a bar projecting from brackets on the side of an ordinary rocking-chair, said fly-wheel being provided with cogs upon one side, which mesh into the cogs on a smaller wheel, which caries a crank for operating the dasher of the churn, a suitable belt being arranged upon the rim of the fly-wheel and around a small pulley for setting in motion a rotary fan." (Lines 13-25) Includes instructions and illustrations.
Date: January 15, 1878
Creator: Crump, Thomas J.
Object Type: Patent
System: The Portal to Texas History
Improvement in Buckles. (open access)

Improvement in Buckles.

Patent for an improvement in buckles which involves the creation of a diamond-shaped plate.
Date: June 27, 1876
Creator: Kennon, William F.
Object Type: Patent
System: The Portal to Texas History
Improvement in Reciprocating Churns (open access)

Improvement in Reciprocating Churns

Patent for "certain new and useful improvements in the construction of churns, whereby dashers are caused to rotate very rapidly, thus greatly facilitating the process of producing butter; also, the churn and its supporting frame-work being constructed and arranged in sections permits of it being taken apart very readily, and packed in a very small space for shipment." (lines 12-20) including instructions and illustrations.
Date: February 27, 1877
Creator: Welch, John M.
Object Type: Patent
System: The Portal to Texas History
Improvement in Gang-Plows. (open access)

Improvement in Gang-Plows.

Patent for improvements to the gang-plow consisting of "an adjustable frame, within which two or more ordinary plows can be arranged to form the gang, said frame being constructed so as to enable one set of plows to run deep, while the other set can be made to run shallow." (Lines 15-19) Includes instructions and illustrations.
Date: July 17, 1877
Creator: Crump, Thomas J.
Object Type: Patent
System: The Portal to Texas History