Tribute to the memory of Mr. Ahmed S. Bokhari, Under-Secretary for Public Information. Agenda item 25: Effects of atomic radiation (A/3838, A/3858, A/3864 and Add.1, A/C.1/L.227 and Corr.1): (a) Report of the United Nations Scientific Committee on the Effects of Atomic Radiation; (b) Report of the Secretary-General on the strengthening and widening of scientific activities in this field.