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Avogadro's Law – Azrek

Avogadro's Law

in physics, asserts that equal volumes of different gases at the same pressure and temperature contain an equal number of mole cules.

Avoirdupois

a system of weights used for all goods except precious metals, gems, and medicines, and in which a pound contains 16 ounces, or 7,000 grains, while a pound troy contains 12 ounces, or 5,760 grains. A hundredweight contains 112 pounds avoirdupois.

Avon

the name of several English and Scottish rivers, the best known of which is that Avon which rises in Northamptonshire, and flows into the Severn at Tewkesbury, after a course of 100 miles. On its banks is Stratford-on- Avon, the birthplace and abode of Shakespeare, who has hence been styled the Bard of Avon.

AVONDALE

Avondale

a parish of Scotland, in the county Lanark. At the battle of Drumclog, fought near this place June 1, 1679, Grahame of Claverhouse, the famous Viscount Dundee, was defeated by the forces of the Scottish Covenant.

A graphic description of this battle is found in Sir Walter Scott's "Old Mortality."

Axil

in botany, the angle between the upper side of a leaf and the stem or branch from which it grows. Buds usually grow out from the stem in axils of leaves, and this position is naturally termed axillary. In anatomical terminology, the axilla is the armpit.

Axim

an important station and port on the African Gold Coast, a little to the E. of the mouth of the Ancobrah river.

Axinite

a triclinic mineral, called also yanolit and thumite. The crystals are broad with their edges sharp. It is found, both in its normal state and altered, in Europe and in the United States.

Aye-Aye

an animal of Madagascar, so called from its cry, now referred to the lemur family. It is about the size of a hare, has large, flat ears and a bushy tail; large eyes; long, sprawling fingers, the third SO slender as to appear shriveled; color, musk-brown, mixed with black and gray ash; feeds on grubs, fruits, etc.; habits, nocturnal.

Ayeen

or AKBERY, a very valuable statistical description of the Mogul Em- AYR pire as it was in the reign of Akbar. It was compiled by Abul Fazi, the Vizier of the Emperor Akbar. There is an English translation of it by Gladwin.

AYESHAH (i-esh'a), also AYSHA or

Aylesford

a town and parish of England, in the county of Kent, 3 miles from Maidstone. In its vicinity is the remarkable monument called Kit's Coty House, a kind of Druidical cromlech of which the origin is obscure, and much contested among antiquaries.

Azrael

the name given to the angel of death by the Mohammedans.

Azrek

BAHR-EL, or the BLUE RIVER, the principal stream of Abys- AZREK, BAHR-EL, or the BLUE sinia, which, after a winding course through Abyssinia and Sennaar, falls into the Nile above Gerri.