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Improvement in Hot-Air, Steam, and Water-Gauge.

Description: Patent for improvements in hot air, harmonic steam, and water gauges: "In this invention several tubes pass through the boiler, some under and some above the water, through which currents of air are induced by the heat of the water or steam surrounding them" (lines 8-9).
Date: October 8, 1867
Creator: Walker, James C.
Partner: UNT Libraries Government Documents Department

Cactus-Burner.

Description: Patent for "a new and useful improvement in cactus burners" (lines 4-5), including illustration and instructions.
Date: October 21, 1899
Creator: Snowden, Lewis W.
Partner: UNT Libraries Government Documents Department
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