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ation of the aëroplane, having curved surfaces, the advantages of which were first demonstrated by Lilienthal.

hat its action opens and closes valves, producing synchronous air blasts sufficient to operate a larger diaphragm with greater amplitude of vibration.

n writing; a declaration in writing, signed and made upon oath before an authorized magistrate. Bouvier. Burrill.

To make a solemn declaration, before an authorized magistrate or tribunal, under the penalties of perjury; to testify by affirmation.

To give coloring to in description; to exaggerate; as, to aggravate circumstances. Paley.

Exaggerated representation. By a little aggravation of the features changed it into the Saracen's head. Addison.

Now, one who agists or takes in cattle to pasture at a certain rate; a pasturer. Mozley & W.

The taking in by any one of other men's cattle to graze at a certain rate. Mozley & W.

in all its aspects; to contrive busily; to devise; to plot; as, politicians agitate desperate designs.

To struggle; to wrestle; to strive desperately.

With extreme anguish or desperate struggles.

A illiterate person. [Obs.] Bailey.

Pleasing, either to the mind or senses; pleasant; grateful; as, agreeable manners or remarks; an agreeable person; fruit agreeable to the taste. A train of agreeable reveries. Goldsmith.

The quality of being agreeable or pleasing; that quality which gives satisfaction or moderate pleasure to the mind or senses. That author . . . has an agreeableness that charms us. Pope.

A contraction for are not and am not; also used for is not. [Colloq. or llliterate speech]. See An't.

cavity of many fishes. It originates in the same way as the lungs of air-breathing vertebrates, and in the adult may retain a tubular connection with the pharynx or esophagus.

A railway brake operated by condensed air. Knight.

A lateral division of a building, separated from the middle part, called the nave, by a row of columns or piers, which support the roof or an upper wall containing windows, called the clearstory wall.

Becoming white or whitish; moderately white.

ishing matter stored up within the integuments of the seed in many plants, but not incorporated in the embryo. It is the floury part in corn, wheat, and like grains, the oily part in poppy seeds, the fleshy part in the cocoanut, etc.