  We seek a measure of the neutron density of 208Pb from analyses of
intermediate energy nucleon elastic scattering. The pertinent model for such
analyses is based on coordinate space nonlocal optical potentials obtained from
model nuclear ground state densities. Those potentials give predictions of
integral observables and of angular distributions which show sensitivity to the
neutron density. When compared with experiment, and correlated with analyses of
electron scattering data, the results suggest that 208Pb has a neutron skin
thickness ~0.17 fm.
