1st row: E.M.Bonstedt, G.Tshaskovski, Z.A.Lebedeva, V.Elizarovski, A.E.Fersman (l-r);
2nd row: V.A.Unkovskaya, Kryzhanovski, E.P.Kesser, Terentjev,
N.N.Gudkova, E.E.Kostyleva, V.M.Kupletski (l-r)