by (United Kingdom)I.H.Evans;by (United Kingdom)M.Edwards; by (United Kingdom)R.C.Evans;by (United States)R.Zallen; by (United Kingdom)I.H.Witten;by (United Kingdom)P.Kaner; by (United Kingdom)I.L.Finar;by (United Kingdom)I.L.Finar; by (United Kingdom)W.H.Gardner;by (United Kingdom)M.Price; by (United Kingdom)A.S.G.Edwards;by (United Kingdom)G.Evans; by (United Kingdom)D.H.Howe;by (United Kingdom)S.Harratt; by (United Kingdom)H.D.Spear;by (United Kingdom)H.E.Shaw; by (United Kingdom)A.Adams;by (United Kingdom)D.Brown; by (United Kingdom)D.Lessing;by (United Kingdom)M.Lowry;