  Dominions, in the sense of Isbell, are investigated in the context of
decomposable varieties of groups. An upper and lower bound for dominions in
such a variety is given in terms of the two varietal factors, and the internal
structure of the group being analyzed. Finally, the following result is
established: If a variety ${\cal N}$ has instances of nontrivial dominions,
then for any proper subvariety ${\cal Q}$ of ${\cal G}roup$, ${\cal NQ}$ also
has instances of nontrivial dominions.
