by (United States)S.F.Wallace;by (United Kingdom)Peter Wateyn-Jones; by (United States)J.C.Slater;by (United Kingdom)P.Jorgensen; by (United States)J.A.Duffy;by (United Kingdom)Walter J.Moore; by (United States)J.G.Harris;by (United Kingdom)L.Jones; by (United States)L.Trilling;by (United Kingdom)P.Stratford; by (United States)M.C.Hutley;by (United Kingdom)P.Hariharan; by (United States)R.F.Wallis;by (United Kingdom)H.J.Goldsmid; by (United States)Tim Harris;by (United Kingdom)Leo Jones; by (United States)G.Taylor;by (United Kingdom)C.Walter; by (United States)J.J.Sullivan;by (United Kingdom)P.M.Kennedy;