SANTOS-DUMONT (Alberto), 150 Avenue des Champs-Elysees, Paris. Brazilian, of French descent. Born 1873. Officer Leg. d'Hon. Took up ballooning at an early age. He was the first to use a petrol motor in a balloon. In 1900 the fifth dirigible constructed by him crossed the Seine. On Oct. 19th, 1901, in No. 6, he circled the Eiffel Tower and won the 100,000 franc Deutsch prize. In 1906 he became interested in heavier than air machines, and began on a helicopter. Abandoning this he built a box kite type of aeroplane, and on October 23rd, 1906, won the Archdeacon prize for a heavier than air flight of not less than 25 metres. Thereafter, comparatively little was heard of him, except that he was experimenting with the _Demoiselle_, till in 1909 he made a record on this type--the designs of which he presented to the world. Has not been prominent since. SCHABSKY (Athanasius Ivanovitch). Russian. Builder of the _Outchebny_ type dirigible. SCHIERE, J. Aeronautical engineer. Stephonsonstraat 41, The Hague, Holland. Librarian Dutch Ae. C. SCHUeTTE (Prof. Johann), Jaeschkenthal 47b, Danzig-Langfukr, Danzig, Germany. Born 1873. Designer of the _Schuette_ dirigible. SCHWANN (Commander Oliver). British Navy. Navy Air Dept., 1912-13. In 1911, conducted a number of hydro-aeroplane experiments. SCRAGG (Geo. H.), American citizen, 19-21, Great Queen Street, Kingsway, London, W.C. European correspondent of American _Aeronautics_. SELLERS (M.B.) (See U.S. aeroplanes) SELLS (Chas. de Grave), La Colombara, Cornigliano-Ligure, Italy. British. A leading authority on all matters having to do with engineering. Also a writer on these subjects. Authority on matters having to do with aviation in Italy. SHAFFER (Cleve T.) American citizen. West Coast correspondent to _Aeronautics_ (U.S.A.) Writer on aerial subjects generally. SIMON (Rene). August 18th, 1911, tied with Sopwith for the world's Climbing speed at Chicago; 500 metres in 3' 35". SMITH (H. White). British. Secretary to the Bristol Co. SOMMER (Roger) Mouzon, Ardennes, France. Born 1877. Early interested in aviation. In 1908 built a machine of his own design. This was a failure. He then bought one of the first _Farman's_, on which he rapidly achieved success. Towards the end of 1909 he produced the _Sommer_ biplane. SOPWITH (T.) British. Won the Baron de Forest prize on a _Howard Wright_, 1910. Also won many other prizes in England and America. 19th August, 1911, tied with Simon, world's climbing speed--500 metres in 3' 35"--at Chicago. Now a constructor. SPENCER (Stanley). Early British dirigible builder (1902). Died 1913. SPOONER (Stanley), 41 St. Martin's Lane, W.C. Editor of _Flight_. Prominent supporter of aviation. Member of R. Ae. C. Committee. STEIN (Lieut.) German aviator. Killed at Doerlitz, February 6th, 1911.