[en] Differential-neutron-emission cross sections of ²³²Th, ²³³U, ²³⁵U, ²³⁸U, ²³⁹Pu and ²⁴⁰Pu are measured from approx. 1.0 to 3.5 MeV with sufficient angle and magnitude detail to provide angle-integrated emission cross sections to < approx. 3% accuracies. Emitted-neutron resolutions are quantitatively defined and vary from approx. 0.1 to 0.35 MeV. The experimental results are corrected for fission-neutron contributions to obtain pseudo-elastic scattering cross sections which, together with independently-measured neutron total cross sections, define the non-elastic cross sections to within specified energy resolutions. The latter results imply inelastic-neutron-scattering cross sections which are compared with quantities deduced from prominent evaluations. Good general agreement is noted for ²³²Th, ²³³U, ²³⁵U, and ²³⁸U inelastic-scattering cross sections. The agreement is poor in the case of ²⁴⁰Pu and very poor for ²³⁹Pu. The implications of the present results on the integral behavior of ²³⁹Pu critical assemblies and FBR energy systems are discussed. (Auth.)