  The cross-section ratio Rb=sigma(e+e- to b-antib)/sigma(e+e- to q-antiq) and
the bottom and charm forward-backward asymmetries AFB^b and AFB^c are measured
using event samples collected by the OPAL detector at centre-of-mass energies
between 130 and 189 GeV. Events with bottom quark production are selected with
a secondary vertex tag, and a hemisphere charge algorithm is used to extract
AFB^b. In addition, the bottom and charm asymmetries are measured using leptons
from semileptonic decays of heavy hadrons and pions from D*+ to D0pi+ decays.
The results are in agreement with the Standard Model predictions.
