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Euless 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 1:24,000
Date: 1981
Creator: Geological Survey (U.S.)
Location: 32.81 -97.06

Grapevine 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 1:24,000
Date: 1981
Creator: Geological Survey (U.S.)
Location: 32.94 -97.06

Soil Survey of Dallas County, Texas

Description: Text describes the area, climate, agricultural history and statistics, soil-survey methods and definitions, soils and crops, land uses and agricultural methods, irrigation, and morphology and genesis of soils of Dallas County, Texas.
Date: 1980
Creator: Coffee, Daniel R.

Improvement in Gang-Plows.

Description: Patent for an improvement of gang-plows by arranging the plows in rows on to a fame which can be fastened to a wagon, when the wagon is in motion, it causes the plows to work in vertical motion. The height of the plow-frame can be adjusted. Illustration is included.
Date: July 3, 1860
Creator: Wilson, J. C.

Improvement in Cultivators.

Description: Patent for improvement in cultivators in which the plows can be adjusted by width, height and laterally to regulate the depth and angle of inclination. The plows, which can be operated by a foot device, may be simultaneously thrown from the ground. (Lines 73-76) Illustration is included.
Date: November 2, 1869
Creator: Baker, William T.

Improvement in Buckles.

Description: Patent for "an improved method of manufacturing a buckle to secure the different part of harness, saddle, or bridle trimmings, by means of mechanical connections that will obviate the use or necessity or stitches or sewing of any kind, and yet retain the adjacent parts firmly and with a secure engagement." (Lines 18-25) Includes instructions and illustrations.
Date: November 21, 1876
Creator: Bond, Virgil A.
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