A meeting of the Society was held in the Lecture Hall of the Institution of Mechanical Engineers, Storey's Gate, St. James's Park, Westminster, London, S.W.I, on Thursday, March 22nd, 1945, at which a paper by Mr. R. H. Bound, F.R.Ae.S., F.S.E., M.I.M.E., A.M.I.A.E., on “Hydraulics for Aircraft,” was read and discussed. In the chair, the President, Sir Roy Fedden.