DAUCOURT. Frenchman. First pilot to fly from Paris to Berlin, 16th April, 1913. Average speed 100 k.p.h. Time 12 hours, 32 minutes, including two stops. DE BAEDAR (F.), 7 Rue Rameau, Paris. Editor _Revue Sportive de l'Aviation et de l'Automobile_. DE DION (Marqus), 104 Avenue des Champs Elysees, Paris. Born 1856. Principal founder and Hon. President Ae. C. F. DE HAVILAND (G.) British aviator. Designer of a biplane and a motor purchased by the War Office, in December, 1910. He was subsequently engaged by the Government for work on Salisbury Plain. In August, 1912, made the British altitude record to date of 9,500 feet with a passenger. DELAGRANGE (the _late_ Leon). Born 1872. French sculptor. Took up aviation early in 1907. He purchased _Voisin No. I._, which made its first trials 28th February, 1907. Subsequently engaged in experiments with Archdeacon. In 1908 bought a _Voisin No. III._ Later on got a _Bleriot_. Killed 4th January, 1910, at Croix d'Hins, Bordeaux, in a _Bleriot_. Was Ae. C. F. pilot 3. DEMANEST (Rene). French. 25, rue d'Orleans, Neuilly sur Seine. Began flying an _Antoinette_ in 1909. Won the Ae. C. F. prize. DEPERDUSSIN. (See machines). DEPREZ (Marcel). Frenchman. Writer on Aerial subjects. DESBLEDS (L. Bein). Lecturer on Aeronautical Engineering, Polytechnic, London. DEUTSCH (Henri de la Meurth), 4 Place des Etats-Unis, Paris. Officer Leg. d'Hon. Founder member of the Ae. C.F. Donor of the prize of 100,000 francs won by Santos Dumont, 19th October, 1901. Owner of the dirigible _Ville de Paris_. Vice-Pres. Legue Nat. Aerienne. Donor in part of the Deutsch Archdeacon prize. Offered 1909 to found a Technical Institute of Aviation, Paris University. DICKSON (Captain). Ex-British Army officer. The first British aviator to distinguish himself at an International flying meet. DOUTRE. French lawyer, interested in aviation. Invented a stabilising device in which Maurice Farman was interested. DREXEL (A.) Scotland. American citizen. Made world's record at Lanark, 12th August, 1910, in a _Bleriot_, 6,750 feet (2,057 m.), beating previous record of Brookins. DRIVER. British aviator. Flew in first aerial post, 1911. DRZEWIECKI (Stefan), 62 Rue Boileau, Paris. Russian. Born 1844. Chev. Leg. d'Hon. In 1885 investigated aviation in connection with bird flight. Well known otherwise as an inventor of submarines, torpedo tubes, etc. DU CROS (Harvey), M.P., 14 Regent Street, London, S.W. Born 1876. Takes considerable interest in aviation. Member of the Parliamentary Committee thereon. DUFAUX (Armand). Swiss. He and his brother Henry were interested in aviation in 1903, and in 1904 built an helicopter. In 1909 the first Swiss aeroplane built by them appeared.