EditorialH. Giffard airship aerostat, conducted in the air on September 24, 1852, Cigar-shaped airship of Henri Giffard, first flown on September 24, Signed: L. Guiguet, Fig. 59, p. 234, Guiguet, L. (sc.), 1887, Gaston Tissandier: Histoire de mes ascensions. R?...