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Apparatus for Obtaining a Vacuum.

Description: Patent for a new and improved vacuum. This design utilizes a liquid pump, plates, tubes and valves to make "about as perfect a vacuum . . . as can be obtained by an ordinary pump" (lines 53-55).
Date: July 27, 1880
Creator: Ward, Lyman Henry
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department

Refugio County

Description: Cadastral map of Refugio County, Texas in the Gulf Coast region. Some notes and features are marked in color. Scale [ca. 1:133,334] (4000 varas per inch).
Date: 1883
Item Type: Refine your search to only Map
Partner: Texas General Land Office

Map of Refugio County

Description: Cadastral map of Refugio County, Texas in the Gulf Coast region. Some notes and features are marked in color. Scale [ca. 1:133,334] (4000 varas per inch).
Date: 1885
Creator: Schmidt, V.
Item Type: Refine your search to only Map
Partner: Texas General Land Office
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