  A systematic study of correlations in the chart of calculated masses of
Moller and Nix is presented. It is shown that the differences between the
masses calculated by Moller at al and the measured ones have a well defined
oscillatory component as function of N and Z, which can be removed with an
appropriate fit, reducing significantly the error width, and concentrating the
error distribution on a single peak around zero. The residual correlations can
have important consequences in the errors as signaling the presence of chaos,
as was recently proposed.
