THE GROSVENOR CHALLENGE CUP: Dr. E. D. Whitehead Reid, who flew his own mount, seen on the left, a Renault-engined (80 h.p.) S.E.5a.

ALEXANDRA DAY IN THE AIR: The operations of the rose-sellers are gradually extending. In our photographs are seen the bevy of beauties who went over to Paris on Wednesday, June 13, in the special Rolls-Royce Handley Page aeroplane.

The Grosvenor Cup. In Birmingham Control. F. P. Raynham (on right), who secured second place, with his mechanic busy running over the engine

THE GROSVENOR CHALLENGE CUP: Preparing some of the machines before the start at Lympne. From left to right may be seen the Sopwith "Gnu" (Longton), the Bristol monoplane (Foot), and a 504K Avro (Hamersley).

THE GROSVENOR CHALLENGE CUP: An Avro starting from Lympne. Sir William Letts's "504K" (100 h.p. aircooled Bristol "Lucifer"), with Capt. H. A. Hamersley up.

The Supermarine "Sea Eagle" (360 h.p. Rolls-Royce "Eagle IX"): Side view. Note the steps from the fin chine to the pilot's cockpit, and the "coach roof" cabin top.

The Supermarine "Sea Eagle," with Rolls-Royce "Eagle IX" engine, is being used on the route between Southampton and the Channel Islands. Note the retractable undercarriage, and the anchor lashed to the side of the boat.

The Supermarine "Sea Eagle" on the water: Note the wheel raised clear. The main petrol tank is mounted on the top plane.

The Grosvenor Cup. In Birmingham Control. The late Major Foot, M.C., indulging in a cigarette just before leaving. This is probably one of the last photographs ever taken of this greatly-loved pilot

THE GROSVENOR CHALLENGE CUP: An Avro starting from Lympne. A. V. Roe's watercooled Avro Baby (35 h.p. Green), with Bert Hinkler

The Vickers "Victoria," (2) 450 h.p. Napier "Lions": A large 25-seater troop-carrier - a development of the "Vimy."

The Blackburn "Blackburn" Fleet Spotter, 450 h.p. Napier "Lion."

Three views of the "Wren" in flight over Lytham sands recently.

THE FAIREY "FAWN," 450 H.P. NAPIER "LION": A "land" type long-distance reconnaissance machine.

Baron von Freyberg making a flight in the Harth-Messerschmidt glider, on the coast of the Baltic.

THE GROSVENOR CHALLENGE CUP: On the left, Flight-Lieut. W. H. Longton is seen finishing, and winning the Cup, at Lympne. In the centre, the winner, all smiles, alights from his machine, a Sopwith "Gnu" (110 h.p. Le Rhone). Below, the Sopwith being taxied past the enclosures just as F. P. Raynham, the second man home, arrives (and is seen above) on his Avro (130 h.p. Clerget).

THE VICKERS VALENTIA FLYING BOAT: Designed by Vickers and built by S. E. Saunders of Cowes, this machine is fitted with two Rolls-Royce "Condor" engines of 650 h.p. each. Successful flying tests have been carried out recently at Cowes.

THE GROSVENOR CHALLENGE CUP: On the left, C. F. Uwins about to start on Sir Henry White-Smith's Bristol "Taxi-'plane" (100 h.p. Bristol "Lucifer"), after having set his watch to official time.

The L.F.G. glider Phonix 3: This machine is an engineless flying boat, and is started by being towed behind a motor boat. When anchored to a buoy in a strong wind the machine will remain up as a kite.

The Schulz glider flying along the coast of the Kurische Nehrung, a narrow strip of sand dunes separating the Kurisches Haff (in East Prussia) from the Baltic Sea. The machine has no vertical rudder, steering as well as lateral balance being carried out by means of the wing tip flaps.

Herr Schulz, the designer and constructor of the machine bearing his name, in the seat of his glider. The primitive arrangement of the seat will be observed. The glider is controlled by two levers, one operating the wing tip flaps and the other the elevator. There is no rudder. Herr Schulz is a school teacher in East Prussia.

HERR BERR STARTING FOR A FLIGHT IN HIS GLIDER: He got out of the rising currents, and had to alight in the sea.

The Caspar seaplane: three-quarter front view.

THE CASPAR SEAPLANE: On the right, the machine in flight. On the left, front view; and, below, dismantling the wings.

THE CASPAR SEAPLANE: Sketch showing how tail is folded.

Caspar U.1. 50 hp Siemens Engine

THE MIGNET LIGHT 'PLANE: Three-quarter front view.

THE HENRI MIGNET LIGHT 'PLANE: General arrangement drawings.

The Parnall "Plover," 320 h.p. Siddeley "Jaguar": A small fighter, designed to ascend from and alight on the decks of aircraft carriers.