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Oregon.

Description: Map shows early twentieth century Oregon railroads, counties, cities and towns, and "electric lines." "Oregon railroads", overprinted in red ink, with listing of rail lines, keyed to map. Includes index of chief cities and explanation. Relief shown by hachures and spot heights. Scale [ca. 1:1,013,760].
Date: 1910
Creator: Rand McNally and Company.
Partner: University of Texas at Arlington Library

Purification of Gases.

Description: Patent for the purification of gases. The object purifies gases by transporting them through an electric discharge to convert sulfur into other forms of gas.
Date: December 8, 1914
Creator: Hall, Elmon L.
Partner: UNT Libraries Government Documents Department
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