Analysis.—See [Chemical decomposition].
Arbor.—An axle, spindle, shaft or mandrel.
Archives.—A place in which official papers are kept and held secret.
Arlington wireless station.—A high powered wireless station at Arlington, Va., across the river from Washington, D. C.
Assignment.—To transfer to another a right or interest.
Attest.—To witness or to sign an oath that a thing is true.
Automatic.—A machine which performs certain operations of its own accord.
Aviation.—The art of flying.
Axis.—An imaginary line on or around which a body turns. (Plural Axes.)
Basic principle.—The first source or cause of a thing.