d because of appearance and
size were nicknamed "flying pigs."

Fokker German plane. Very fast, good climber.

G.H.Q. Great Headquarters.

G 2 Intelligence Department of Great
Headquarters. Great Headquarters was
divided into several groups, designated,
for convenience, by lettered numerals,
such as G 1, G 2 and G 3, etc.

G.I. cans A large shell. Because of size and usual
coat of grey paint, soldiers declared
they resembled the galvanized iron cans
used for garbage. Hence, G.I. Can.

G.O. General Order.

Hedge hopping Another name for contour chasing. Flying
dangerously low and zooming over
obstacles.

High-tail A plane, when at highest speed possible
straight ahead, carries its tail high.
To high-tail means to go at highest rate
of speed.

Immelmann A sudden turn, reversing the direction.
First used by a German aviator,
Immelmann, and later used by all air
pilots.

Intelligence That section of Great Headquarters
devoted to the handling of all spies and
the collection of information concerning
the enemy. The activities of the
department are too great to be outlined
in a brief definition.

Liaison Contact, communication with. When
several units are operating in unison,
each dependent upon the other, the
contact and coordination is called
liaison--a French word.

Limey Nickname for a British soldier.

Looie A Lieutenant.

Observation balloon A captive balloon, of sausage shape,
carrying an observer whose duty it is to
spot artillery fire, etc. The balloon is
paid out on a cable attached to a winch.
Such balloons are always given
protecting ground batteries to ward off
enemy planes.

Observation bus Generally a two seated plane, carrying