~Motors.~--2 Pipe motors of 100 h.p. each, placed in line with each other in the fore and aft line, and with clutches and the necessary gearing in between them. ~Speed.~--35 m.p.h. ~Propellers.~--3, namely: one at the fore end, driven by the two motors when coupled together, and two placed above and on either side of the centre of the car, for use when only one motor is running. Chauviere propellers. ~Steering.~--Vertical steering by means of a large double aeroplane fixed above the car, about a third from the front. Horizontal steering by means of a double vertical rudder above the rear end of the car. Stability is secured by the usual Astra pear shaped stabilising gas bags, with fins of rubbered cloth spread between the inner edges of these shapes. Remarks.--The distinctive feature of this ship is the arrangement of the propellers. Both motors can be coupled either on to the front propeller or on to the two rear propellers, or on to all three together, but they are actually intended only to drive the front one. On stopping either motor the other is connected to the two rear propellers, which are designed for a slower speed of translation than the front one, with the result that the running motor does not find itself overloaded as it would if the same propeller had to serve both for one and for two motors. BRAZILIAN. ~AVIATORS.~ Garos, Queiroz, Robert, Henri, Santos-Dumont, Versepuiz. There are possibly one to two aeroplanes in Brazil, but the well-known aviators live in France. Little or nothing seems doing in Brazil as yet. BRITISH. ~Aerial Societies:~-- Royal Aero Club. Aerial League. Aeronautical Society. (Premier Society, founded 1866.) Brooklands Aero Club. There were once a great many local aero clubs, but the majority of these have ceased to exist and with one or two possible exceptions all the rest are moribund. ~Aerial Journals, etc.:~-- _Aeronautical Journal._ Quarterly. 53, Victoria St., London, S.W. _Aeronautics._ 3d. monthly. 27, Chancery Lane, London, W.C. _The Aero._ 6d. monthly. 20, Tudor St., London, E.C. _Flight._ 3d. every Saturday. 44, St. Martins Lane, London, W.C. (Official organ of the R. Ae. C.) _The Aeroplane._ 1d. weekly, 166, Piccadilly, London. _All the World's Aircraft._ 21/-. Annual. 100, Southwark Street, London, S.E. and 5, Queen Victoria Street, London, E.C. In addition, the _Car Illustrated_ and the _Motor_ devote considerable space to aerial matters. ~Principal Flying Grounds:~-- ~Aldershot.~--Army school. ~Brighton,~ Shoreham Aerodrome. Aero school. ~Brooklands.~--Bristol school. ~Camber Sands,~ Rye, Sussex.--At low tide moderately hard sand and soft places. Area two miles by one mile. ~Dagenham~ (Aeronautical Society). ~Dartford Marsh.~--Vickers school. ~Dunstall Park,~ Wolverhampton. ~Eastbourne.~ Aerodrome School.