Professor Chris Llewellyn-Smith, FRS, Director of the UKAEA Culham Laboratory, Abingdon, Oxford, will give a talk entitled Nuclear fusion as a global energy source? Work at the UKAEA Culham Laboratory and elsewhere to harness fusion energy, at a meeting of the Society at 7.30 p.m. on 11 June, in the Wolfson Lecture Theatre, Churchill College. Dr Richard Freeman will take the chair. Non-members are welcome. Coffee is available before the lecture.