Photoelectron spectra of C-60 and C-70 were measured systematically at
several photon energies to explore the partial cross section behaviou
r. Strong oscillations were observed and are explained by a scattering
model in which part of the photoelectron wave emitted from the deloca
lized valence electrons is reflected at the center of the ball-like mo
lecule. Similar but less pronounced behaviour was also observed for C-
70.