  We report measurements of conductance distribution in a set of
quasi-one-dimensional gold wires. The distribution includes the second cumulant
or the variance which describes the universal conductance fluctuations, and the
third cumulant which denotes the leading deviation. We have observed an
asymmetric contribution--or, a nonvanishing third cumulant--contrary to the
expectation for quasi-one-dimensional systems in the noninteracting theories in
the one-parameter scaling framework, which include the perturbative
diagrammatic calculations and the random matrix theory.
