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aped like an inverted funnel, and with a very thin convex bottom. By sucking out a little air, the bottom springs into a concave form with a smart crack; and by breathing or blowing gently into the orifice, the bottom, with a like noise, springs into its former convex form.

One of a pair of shelly plates found in some cephalopods, as the ammonites.

orting wood when burning in a fireplace, one being placed on each side; a firedog; as, a pair of andirons.

he atmosphere upon the elastic top of a metallic box (shaped like a watch) from which the air has been exhausted. An index shows the variation of pressure.

The angle between the chord of an aërocurve and the relative direction of the undisturbed air current.

, a cat, etc. Angora cat (Zoöl.), a variety of the domestic cat with very long and silky hair, generally of the brownish white color. Called also Angola cat. See Cat. -- Angora goat (Zoöl.), a variety of the domestic goat, reared for its long silky hair, which is highly prized for manufacture.

its food into an internal cavity or stomach for digestion; by giving carbonic acid to the air and taking oxygen in the process of respiration; and by increasing in motive power or active aggressive force with progress to maturity.

That which annoys. A grain, a dust, a gnat, a wandering hair, Any annoyance in that precious sense. Shak.

whole the various anomalies and contending principles that are found in the minds and affairs of men. Burke. As Professor Owen has remarked, there is no greater anomaly in nature than a bird that can not fly. Darwin.

A small antenna; -- applied to the smaller pair of antennæ or feelers of Crustacea.

e nature of anticipation. Owen. Here is an anticipatory glance of what was to be. J. C. Shairp.

A cover for the back or arms of a chair or sofa, etc., to prevent them from being soiled by macassar or other oil from the hair.

r roused to active interest or exertion by pleasure, pain, or passion. "The apathy of despair." Macaulay. A certain apathy or sluggishness in his nature which led him . . . to leave events to take their own course. Prescott. According to the Stoics, apathy meant the extinction of the passions by the ascendency of reaso…

A large marine annelid, covered with long, lustrous, golden, hairlike setæ; the sea mouse.

Devoid of air; free from air; as, an apneumatic lung; also, effected by or with exclusion of air; as, an apneumatic operation.

A deposit formed in a liquid extract of a vegetable substance by exposure to the air.

n appearance, to be present; to appear in person. -- To save appearances, to preserve a fair outward show.

Partaking of the nature of water, or abounding with it; watery. The aqueous vapor of the air. Tyndall.

Covered with, or composed of, soft, loose hairs or fibers, so as to resemble a cobweb; cobwebby.

om." Boyle. These architectonic functions which we had hitherto thought belonged. J. C. Shairp.