mean that the short distance physics does not have important long range consequences. In particular, the value of the meson-nucleon coupling constant, determined by short distanced physics, plays an essential role in the potentials at long and intermediate ranges.

We believe that this general approach of treating the short range part of the NN interaction phenomenologically while explicitly including the effects of lighter mesons is reasonable. This general approach ought to be applicable to charge symmetry breaking effects.

There is another important assumption which underlies these models. It is assumed that at except at short distances the vector part of the potential is dominated by the vector mesons. Thus it is assumed that continuum two pion vector-isovector and three pion vector-isoscalar exchange contributions are small— [*i.e.*]{} that the only substantial strength arising from the two pion vector-isovector exchange is sufficiently concentrated at the $\rho$ mass as to be well described by $\rho$ exchange and analogously for three pions and the $\omega$ exchange. We note that this assumption can be questioned. In its favor we note that in $e^+ e^- \rightarrow$ pions, the $\rho$ and $\omega$ peaks do, in fact, completely dominate the low lying spectral function.

In our discussions we 