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Calculator (open access)

Calculator

Patent for a calculator which consists of semicircular device with movable pointers and number indexes printed on it that allows the pointers to be moved to different numbers to produce the answer to a math problem such as calculating the cost of goods sold by the pound in a store.
Date: December 21, 1909
Creator: Goss, George Wilson
Object Type: Patent
System: The Portal to Texas History
Pecos Valley Aquifer, West Texas: Structure and Brackish Groundwater (open access)

Pecos Valley Aquifer, West Texas: Structure and Brackish Groundwater

"The pilot study has helped lay the foundation for future Brackish Resources Aquifer Characterization System projects by developing a database management system in which variety of data can be stored and processed."
Date: June 2012
Creator: Wise, Matthew R.; Kalaswad, Sanjeev & Meyer, John E.
Object Type: Report
System: The Portal to Texas History

2000 Census County Block Map: Culberson County, Index

Index map for Culberson County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:242,609.
Date: 2000
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

2000 Census County Block Map: Reeves County, Block 2

Parent map for Reeves County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:40,000.
Date: 2000
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

2000 Census County Block Map: Loving County, Block 2

Parent map for Loving County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:27,500.
Date: 2000
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

2000 Census County Block Map: Loving County, Block 1

Parent map for Loving County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:27,500.
Date: 2000
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Loving County, Index

Index map for Loving County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:120,186.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

2000 Census County Block Map: Culberson County, Block 3

Parent map for Culberson County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:40,000.
Date: 2000
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

2000 Census County Block Map: Reeves County, Block 1

Parent map for Reeves County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:40,000.
Date: 2000
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Reeves County, Index

Index map for Reeves County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:212,370.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Reeves County, Block 1

Parent map for Reeves County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:30,000.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Culberson County, Block 3

Parent map for Culberson County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:40,000.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Reeves County, Block 2

Parent map for Reeves County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:30,000.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Loving County, Block 2

Parent map for Loving County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:27,500.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

1990 Census County Block Map (Recreated): Culberson County, Index

Index map for Culberson County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:242,609.
Date: 1990
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Loving County, Block 1

Parent map for Loving County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:33,000.
Date: November 28, 2010
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Culberson County, Index

Index map for Culberson County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:214,935.
Date: December 14, 2010
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Reeves County, Block 1

Parent map for Reeves County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:20,000.
Date: December 10, 2010
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Reeves County, Index

Index map for Reeves County, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:204,700.
Date: December 10, 2010
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

P.L. 94-171 County Block Map (2010 Census): Culberson County, Block 6

Parent map for Culberson County, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:21,000.
Date: December 14, 2010
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

2000 Census County Subdivison Block Map: Mentone CCD, Texas, Block 2

Parent map for Mentone Census County Division, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:27,500.
Date: 2000
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

2000 Census County Subdivison Block Map: Pecos CCD, Texas, Block 1

Parent map for Pecos Census County Division, Texas showing the area of one geographic block for which the U.S. Census Bureau collected data. The plotted map scale is 1:40,000.
Date: 2000
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

2000 Census County Subdivison Block Map: Mentone CCD, Texas, Index

Index map for Mentone Census County Division, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:120,186.
Date: 2000
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History

2000 Census County Subdivison Block Map: Van Horn Rural CCD, Texas, Index

Index map for Van Horn Rural Census County Division, Texas showing the distribution of census blocks and smaller inset areas for which the U.S. Census Bureau collected data. The plotted map scale is 1:242,609.
Date: 2000
Creator: United States. Bureau of the Census.
Object Type: Map
System: The Portal to Texas History