  Detailed comparisons are made between results of calculations for
intermediate energy nucleon--208Pb scattering using optical potentials obtained
from Dirac phenomenology and a microscopic Schrodinger model. The two
approaches yield quite similar results for all of the observables with each
projectile, including spin observables, suggesting the two models are
physically equivalent. A new phenomenon in the analyzing power is confirmed in
the results for 100 MeV scattering.
