xl, 299, [3], [4] pp. 9 engraved plates. (8vo) 8¼x5¼, modern ¾ tan calf and cloth, top edge gilt. First Edition, Second Issue.

Second issue, with 4 page supplement at rear. "The first full-length account of the experiments with balloon flight conducted by the Montgolfier brothers in 1783"--Norman 769. Printing and the Mind of Man 229 ("the first serious treatise on aerostation as a practical possibility"). Leather book label of Carl J. Ulmann on front pastedown.