  An additional value of the Avogadro constant was obtained by counting the
atoms in isotopically enriched Si spheres. With respect to the previous
determination, the spheres were etched and repolished to eliminate metal
contaminations and to improve the roundness. In addition, all the input
quantities -- molar mass, lattice parameter, mass, and volume -- were
remeasured aiming at a smaller uncertainty. In order to make the values given
Refs.\ 1 and 2 usable for a least squares adjustment, we report about the
estimate of their correlation.
