Airopaidia: 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. by Thomas Baldwin - Read Free Online | Lex