The power-plant consisted of an 8-cylinder V air-cooled 70 horse-power Renault motor, which drove through under gearing a large Chauviere tractor propeller. In addition the machine was equipped with a very complete wireless set for receiving and sending messages, the current being generated by a small dynamo, which was placed underneath the fuselage and was driven by the engine. The Burgess-Wright shown was of the regular two-passenger type, capable of being started from the seat, and fitted with a 6-cylinder 50 horse-power silenced Kirkham motor in place of the usual 35 horse-power Wright. SCHILL Paul Schill, of the Max Ams Company, exhibited a large Farman-type hydroaeroplane, equipped with a 100 horse-power 8-cylinder Max Ams motor, which could be cranked from the seat. This biplane had a covered-in cabin with seats for three persons. The hydroplanes were fitted to the regular skid struts and were of the single-step type. COFFYN Frank T. Coffyn exhibited a hydroaeroplane. This machine was the regular standard Wright pattern, but fitted with Coffyn’s own hydroplanes. Coffyn was the first man to successfully fit double hydroplanes to an aeroplane. Another improvement made by Coffyn was the fitting of a starting-crank to permit starting the motor from the front without having to turn the propellers. CHRISTMAS The Christmas Aeroplane Company showed a biplane. The wings of this biplane were set at a double dihedral angle, with an opening about two feet wide in the centre of the top plane, to take up the blast of air made by the propeller. The edges of the wings were flexible like a bird’s. The controlling-gear consisted of a semicircular wheel, which by rotating worked the ailerons, while a twisting movement of the whole on its axis turned the vertical rudder, and a fore-and-aft movement, operated by warping, the large horizontal rudder in the rear. The motor used was a 7-cylinder 50 horse-power Gyro. GRESSIER The Gressier Aviation Company exhibited a “Canard” type machine which was fitted with a 50 horse-power Gnome. This machine has an elevator in front of the fuselage, while the main planes and motor were in the rear. The seats for pilot and passenger were situated just in front of the main biplane cellule. The biplane shown was fitted with three skids and six Farman-type shock-absorbing wheels. REX