Airopaidia : $b Containing the narrative of a balloon excursion from Chester, the eighth of September, 1785, taken from minutes made during the voyage; hints on the improvement of balloons ... To which is subjoined, mensuration of heights by the barometer, made plain; with extensive tables. The whole serving as an introduction to aërial navigation.
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![Cover of [William Wheeler Hubbell, authorized to apply for patents.] by United States. Congress. Senate. Committee on Patents](/img/cover/10200621-M.jpg)
