  Using Chern-Simons gauge theory, we show that the fusion ring of the
conformal field theory G_k is isomorphic to P(u)/(\del V), where V is a
polynomial in u and (\del V) is the ideal generated by the conditions \del V=0.
We also derive a residue-like formula for the correlation functions in the
Chern-Simons theory thus providing a RCFT version of the residue formula for
the TLG models. An operator that acts like the measure in the residue formula
has the ionterpretation of a handle squashing operator and an explicit formula
for this operator is given.
