  We present bisector measurements of the H-alpha line of the rapidly
oscillating Ap (roAp) star, Alpha-Cir, obtained from dual-site observations
with medium-dispersion spectrographs. The velocity amplitude and phase of the
principal pulsation mode vary significantly, depending on the height in the
H-alpha line, including a phase reversal between the core and the wings of the
line. This supports the theory, suggested in Paper I, of a radial pulsational
node in the atmosphere of the star. Blending with metal lines partially affects
the H-alpha bisector results but probably not enough to explain the phase
reversal.
  We have also detected changes in the equivalent-width of the line during the
pulsation, and measured the oscillatory signal as a function of wavelength
across the H-alpha region.
