This report presents an extension of neutron spectra measurements with a fast chopper, previously described by Johansson et al. (1). As before, the investigation concerns spectra of neutrons scattered from various materials placed in the central vertical channel of the reactor R1. Special interest has been devoted to the epithermal region; in particular to the distortion of the spectrum caused by the fuel. For scatterers with heavy atoms it has thus been possible to observe “steps” in E ·Φ (E) at each one of the three lowest uranium resonances. The heights of these steps compare fairly well to calculations. The upper energy limit for the present measurements is about 10,000 ev. Some experiments using a heated scatterer have also been performed partly to check results published earlier.