by (United Kingdom)N.A.Parris;by (United States)L.P.Jackson; by (United Kingdom)W.E.Parry;by (United States)A.O.Barut; by (United Kingdom)R.E.Parker;by (United States)D.F.Falk; by (United Kingdom)W.M.Darley;by (United States)L.A.Peterson; by (United Kingdom)N.E.Parker;by (United States)G.B.Ryvicki; by (United Kingdom)J.D.Lawson;by (United States)L.J.Pinson; by (United Kingdom)S.Zacks;by (United States)S.Zacks; by (United Kingdom)R.A.Close;by (United States)L.C.leighton; by (United Kingdom)A.S.Hornby;by (United States)L.R.Hilsen; by (United Kingdom)J.D.Collinson;by (United States)L.A.Frakes;