morale. Harmful
newspaper agitations. General Trenchard's achievement. Lessons of
experience. Fighting aeroplanes; wireless; anti-aircraft guns;
photography. Experimental machine with every squadron. Training of
pilots at the Central Flying School. Training of observers begins late
in the war. Meaning of the observer's badge.

General Henderson relinquishes command. His death, 1921, and character.

Continuous growth of Flying Corps. Observation and fighting. Bombing
raids and night-flying. Programmes of the Royal Flying Corps command.
Contrast between German and British artillery observation. Need for
British anti-aircraft guns. Number of machines in a squadron raised to
eighteen in 1916. Programmes of 1916 and 1917. The war ends before the
latter is completed. Small early reinforcements. The supply of pilots.
French supply machines to us during earlier years of the war. Military
and naval officers posted to Paris to arrange supply.

The expansion of the Royal Naval Air Service. The problem of helping the
navy from the air. The seaplane. The vessels designed to carry aircraft.
Difficulty of landing an aeroplane on the deck of a moving vessel. The
feat first accomplished, August 1917.

Kites and balloons. The Parseval kite balloon. The Drachen and the
Cacquot. Wing Commander Maitland's report. Kite-balloon centre
established at Roehampton. The first kite-balloon ship--the _Manica_.
Experiments with kite balloons towed by ships. Demand of the army for
kite balloons on the western front. This demand supplied by the navy.

The invention of the type of small airship called the Submarine Scout.
The flying boat. Sopwith Bat boat. Work of Colonel J. C. Porte at
Felixstowe. His earlier career. Achievements in 1918 of Felixstowe
flying boats.

Torpedo aircraft. Experiments. Use of the torpedo seaplane at Gallipoli.
Slowness of its practical development. Causes of this delay. Operational
difficulties. The _Cuckoo_, a torpedo aeroplane, produced in 1917. The
_Argus_ built to carry torpedo aeroplanes, 1918. The value of torpedo
aircraft. Dreaded by Dreadnoughts. Unpopular with pilots.

The navy and private firms. Need for fighting machines, and for powerful
engines. Rivalry between military and naval air services. Demand for
squadrons on western front. Two naval squadrons offered in 1914, and
refused. Development of aerial fighting, and of bomb-dropping. The
Fokker menace in 1916. Admiralty lend four Nieuport scouts to help