Abstract
In Part I, absorption-scattering cross sections of many element for neutrons of different energy from about 2.1 to 2.8 mev have been determined Complicated dependences of the cross sections upon the neutron energy have been observed. The cross section of hydrogen was coinpared with theory. In Part II, differential scattering cross section was determined for H, C, Al, Fe and Pb at the mean scattering angle of about 40°. From the results, it is expected that the angular distribution of scattered neutrons is much different from isotropic one in cases of Al, Fe and Pb referred to the system of laboratory and in the case of H referred to the system in which the centre of gravity is at rest. The scattering by carbon is expected to be an isotropic oue
