The Twelfth Louis Blériot Lecture, “The Griffon Aircraft and the Future of the Turbo-Ram-Jet Combination in the Propulsion of Supersonic Aeroplanes” was given by General Noël Daum, Technical Director, Nord Aviation, on 12th March 1959 at the Institution of Mechanical Engineers, Birdcage Walk, London, S.W.I. Sir Arnold Hall, M.A., F.R.S., F.R.Ae.S., President of the Society, presided.

Before introducing the Lecturer, Sir Arnold presented the Society ̓s Gold Medal, the highest award the Society can confer, which the Council had awarded to Monsieur Marcel Dassault and which they felt it would be particularly appropriate to present on this occasion—their annual joint meeting with the Association Francaise des Ingenieurs et Techniciens de l ̓Aéronautique (A.F.I.T.A.)