by (United Kingdom)W.Grassie;by (United States)W.Schnabel; by (United Kingdom)G.Pisier;by (United States)I.Singer; by (United Kingdom)J.Bridge;by (United States)W.E.Boyce; by (United Kingdom)C.Schaerf;by (United States)P.F.Schewe; by (United Kingdom)R.Battion;by (United States)A.P.Schaap; by (United Kingdom)W.Empson;by (United States)F.Rissover; by (United Kingdom)W.Irving;by (United States)R.Jordania; by (United Kingdom)W.R.Ashby;by (United States)F.Csaki; by (United Kingdom)W.N.Sproson;by (United States)D.Ingram; by (United Kingdom)W.E.Parry;by (United States)A.O.Barut;