Collection
Serial/Series Title
2000 Census County Subdivision Block Map
71
2010 Census County Block Map
60
2010 Census P.L. 94-171 County Block Map
60
1990 Census County Block Map
53
2000 Census County Block Map
53
Digital US Topo Maps: 7.5 Minute Series (Topographic)
52
7.5 Minute Series (Topographic)
37
Digital Raster Graphic Topographic Maps: 7.5 Minute Series (Topographic)
26
15 Minute Series (Topographic)
25
2007 Economic Census Map
10
12 More
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538 Matching Results
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529 - 538 of
538
Soil Survey of Hardin County, Texas
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 Hardin County, Texas.
Date:
September 2006
Creator:
United States. Natural Resources Conservation Service.
Object Type:
Book
System:
The Portal to Texas History
Railway-Rail Joint
Patent for improving the construction and increase the efficiency and utility of railway-rail joints.
Date:
January 2, 1906
Creator:
Verneuil, Edward Benjamin
Object Type:
Patent
System:
The Portal to Texas History
Rail Joint
Patent for Rail Joint
Date:
November 21, 1916
Creator:
Walker, Asa
Object Type:
Patent
System:
The Portal to Texas History
Pipe-Fishing Tool.
Patent for a tool to remove pipe from a well, especially oil and gas.
Date:
November 16, 1920
Creator:
Wilkinson, Lee
Object Type:
Patent
System:
The Portal to Texas History
Detachable Rubber Heel.
Patent for "a rubber heel tap adapted for detachable connection to the heel of a boot or shoe, and which shall serve to cushion the fall of the heel," and "to provide a corrugated surface upon the face of the heel which shall adapt the same for service as an ice creeper." (Lines 14-21) Includes instructions and illustrations.
Date:
May 28, 1895
Creator:
Williams, Thomas Jackson
Object Type:
Patent
System:
The Portal to Texas History
Knee and Head Block for Saw Mills.
Patent for a new and improved knee and head block. This design consists, "with a saw-mill carriage, of a head-block extending flush with the outer edges of the tracks of said carriage and provided with the usual groove or recess extending the entire length of said head-block, a knee sliding in said groove and provided on its front vertical edge with a recess, and a log-supporter fitting flush within said recess and provided at its lower end with a forwardly-extending lug or projection" (lines 39-48).
Date:
April 29, 1890
Creator:
Willis, George F.
Object Type:
Patent
System:
The Portal to Texas History
Process For Treating Petroleum-Oils
Patent for an improved process for treating petroleum oils, to remove asphaltum. (lines 9-12)
Date:
December 19, 1905
Creator:
Wintz, James Philip
Object Type:
Patent
System:
The Portal to Texas History
Pump.
Patent for a "pump for effectively pumping oil or quicksand from wells troubled with quicksand." (Lines 8-10) Includes instructions and illustrations.
Date:
March 30, 1897
Creator:
Wintz, James Philip
Object Type:
Patent
System:
The Portal to Texas History
Updating the Hydrogeologic Framework for the Northern Portion of the Gulf Coast Aquifer
This report documents the development of the structure, lithology, and depositional framework for the Gulf Coast Aquifer system from the Brazos River north to the Sabine River and into Louisiana. (p. xiii).
Date:
June 2012
Creator:
Young, Steven C.; Ewing, Tom; Hamlin, Scott; Baker, Ernie & Lupton, Daniel
Object Type:
Report
System:
The Portal to Texas History
Pump-Piston.
Patent for new and improved pump piston. This patent is accompanied by drawings and the object is to provide a pump piston wherein the the piston body proper is securely maintained against shifting upon the piston rod.
Date:
March 22, 1921
Creator:
Yount, Miles F.
Object Type:
Patent
System:
The Portal to Texas History