258 DICTIONARY OF AVIATION '\
extent of wing, the extent or expanse of wing; wings spred.
false wing, the alula of a bird's wing; the bastard wing; the ala spuria.
fixing of the wing, a fixing or rigidity of the wing or wings of a wounded bird, due to nervous shock.
flexure of the wing, the carpal angle of a bird's wing; the bend of the wing; the flexure or bend.
folded wings, same meaning as plicate wings.
inferior wing, (in entomology) a posterior or hind wing of an insect : so cald because it folds under the anterior wing.
length of wing, the shortest distance from the flexure or carpal angle of a bird's wing to the wing^tip or point of the wing.
lining of the wing, the under set of wing^coverts, which lines the wing of a bird; the inferior tectpces.
little wing, the small parcel of fethers which grow upon a bird's thum.
make wing, take wing, take flight; fly; depart.
mesothoracic wing, (in entomology) one of the pair of wings borne en the mesothorax or middle division of the thorax of an insect; one of the first pair of wings; an an- terior or upper wing; a fore^wing; a superior wing.
metathoracic wing, (in entomology) one of the pair of wings borne on the metathorax or third division of the thorax of an insect; one of the second pair of wings; a posterior or lower wing; a Mndwmg; an inferior wing.
mirror of a iving, a specially colord area on some of the flight^ ethers of a bird's wing; the speculum.
on the wing, (adjectivally) being upon the wing or in flight; traveling: as, a hunter of birds *on the wing; (ad- verbially) tuhile upon the wing or in flight; while moving or traveling thru the air.
on the wings of the wind, aloft, or in the air, borne aleng by the wind considerd as a winged creature in flight.
pctiolate wing, (in entomology) an insectewmg with a petiole^like stalk or base; a wing in luhich the base is very narrow and has parallel sides, suddenly enlarging to the body of the wing, as in the genus Agrion.
plane wings, (in entomology) wings which in repose are extended horizontally, or in a horizontal plane.
plicate wings, (in entomology) wings which in repose are doubled or folded lengthwise one or more times; folded wings.
point of the wing, the extreme end of a bird's wing; the
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