This email is a reminder of the RAS Ordinary Discussion Meeting on the 11th October 2013 at which Professor Chris Chapman will be presented with the RAS Gold Medal and Professor Bob White will deliver the 2013 Harold Jeffreys lecture. The title of the lecture is 'Building the dynamic crust of Iceland by rifting and volcanism'. The meeting begins at 16:00 in the Geological Society lecture theatre, Burlington House, London. Please note that, commencing this year, the Harold Jeffreys lecture is restricted to topics in geophysics and planetary physics, with a separate lecture (the James Dungey lecture) for solar-terrestrial physics. Although the stated deadline for nominations for the Harold Jeffreys lectureship had passed, the awards committee would be happy to consider further nominations that arrive in time to be considered at their meeting in November. The rubric for the Harold Jeffreys Lectureship states: The Harold Jeffreys Lecture is given annually by a distinguished and eloquent speaker on a suitable topic in geophysics. The Harold Jeffreys lecture is generally reserved for topics concerning the interior structure, formation and composition of the Earth and/or planets (e.g. seismology, tectonics, geodesy, geomagnetism, solar system dynamics, meteoritics). The speaker may be based in the UK or overseas. I encourage you to nominate anyone who you believe would fit this description. Details of how to nominate someone can be found on the RAS website (http://www.ras.org.uk/awards-and-grants/awards/2271-harold-jeffreys-lectureship). My apologies if you receive duplicate copies of this email from different mailing lists.