  This paper studies symplectic manifolds that admit semi-free circle actions
with isolated fixed points. We prove, using results on the Seidel element due
to McDuff and Tolman, that the (small) quantum cohomology of a $2n$ dimensional
manifold of this type is isomorphic to the (small) quantum cohomology of a
product of $n$ copies of $\bb{P}^1$. This generalizes a result due to Tolman
and Witsman.
