  The continuum morphologies of high redshift radio galaxies and quasars can be
modeled as enormous bipolar reflection nebulae from shells of dust swept up by
bipolar outflows. If the observed shape of a particular object is fit with an
analytic function, then the velocity of the shell is specified by the equations
of motion. The predicted kinematics can be compared with the observed emission
line velocity field, and the resulting fit is excellent. The implications for
massive galaxies at high redshift include the requirement of an initial epoch
of star formation that creates dust distributed throughout a very large,
diffuse, nearly virialized halo.
