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. Agenda item 63: Question of Algeria (A/3853).