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Published online by Cambridge University Press: 28 July 2016
The 767th Lecture was read before the Royal Aeronutical Society on Thursday, 17th February 1949, at the Institution of Civil Engineers, Great Georgr Street, London, S.W.1. Dr. H. Roxbee cox, D.I.C., F.R.A.e.S., President of the Society introduced the Lecture Squadron Leader E. A. Harrop, O.B.E., A.F.R.Ae.S., R.A.F., of the Department ot the Air Member for Technical Services, Air Ministry, and a serving engineer officer of long experience in the Royal Air force.