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Mitchell Co.

Description: Cadastral map of Mitchell County, Texas, showing property lines, ownership, land grants, and plat numbers. The map also includes towns, roads, rivers, and creeks. No scale indicated.
Date: July 1880
Creator: Wise, Louis C.
Partner: Hardin-Simmons University Library

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
Partner: UNT Libraries Government Documents Department
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