Pneumatics of aerostation, the science of operating lighter-than-air aircraft, with two hot-air balloons and aeronauts. Copperplate engraving by Wilson Lowry from Abraham Rees' Cyclopedia or Universal Dictionary of Arts, Sciences and Literature, Longman, Hurst, Rees, Orme and Brown, London, 1820.

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Keywords: 19th, abraham, aeronaut, aerostation, air, aircraft, arts, aviation, balloon, century, copperplate, cyclopedia, dictionary, drawing, engraving, hot, illustration, literature, pneumatics, rees, sciences, universal