With semiconductor detectors and time-of-flight equipment, measurements, similar to those made in a previous study of uranium fission, have been made on members of fragment pairs resulting from fission of bismuth induced by 2.9-GeV protons. Fragment-pair angular correlation and fragment energies were measured in addition to velocity of one fragment; single-fragment mass spectra were thus determined. It was inferred from the mean fragment masses that the distribution of cascade deposition energies associated with bismuth fission is narrower than it is for uranium fission; neither low deposition energies nor very high deposition energies contribute appreciably to bismuth fission, although they are both important in uranium fission. The mean fragment velocity is found to be identical with that for uranium fission. It is concluded that the mechanism of high-energy bismuth fission is essentially indistinguishable from that operative in fission at low excitation energies generally.