by (United Kingdom)W.J.Entwistle;by (United Kingdom)M.E.Heatherington; by (United Kingdom)R.T.Bottle;by (United Kingdom)J.Brjckington; by (United Kingdom)M.J.D.Powell;by (United Kingdom)Y.K.Cheung; by (United Kingdom)W.S.Fowler;by (United Kingdom)A.Gethin; by (United Kingdom)A.G.Hamilton;by (United Kingdom)W.S.Matcher; by (United Kingdom)A.H.Haines;by (United Kingdom)M.J.B.Themson; by (United Kingdom)I.H.Evans;by (United Kingdom)M.Edwards; by (United Kingdom)W.H.Hudson;by (United Kingdom)R.Jefferies; by (United Kingdom)W.J.Coffey;by (United Kingdom)C.A.M.King; by (United Kingdom)W.S.Fowler;by (United Kingdom)W.S.Fowler;