Airy, SIR

GEORGE BIDDELL, 1801-1892. English mathematician and astronomer. Prof. Cambridge 1826, Astronomer Royal 1835-81. Calculus of Variations; Trigonometry; Mathematical Tracts; Mathematical Elements of Music; and many astronomical memoirs. Aisle. In architecture, properly, the lateral subdivision of a church, separated from the central compartment, or nave, by the piers that support the walls of the clerestory. Also, the nave, as a three-aisled or five - aisled church, properly a church with a nave and two or four aisles. There is but one five-aisled cathedral in England, that of Chicester. On the Continent such cathedrals are numerous. Chart res and Rheims have five-aisled choirs. Amiens, Milan, Noyon, Bourges, and Cologne are five-aisled throughout, while Notre Dame of Paris is seven-aisled. The most extensive subdivision of an interior by pillars in Europe is that of the Mosque of Cordova, which has nine aisles on each side of the nave. Aisle-Melrose Abbey. -Also, an alley or pa age-way be tween rows of seats in a church, or audience-room of any kind, even when there is no structural subdivision.