Reviews of topical problems

Ya.L. Al’pert “Investigation of the ionosphere and of the interplanetary gas with the aid of artificial satellites and space rockets” Sov. Phys. Usp. 3 479–503 (1961)

V.L. Ginzburg, S.I. Syrovatskii “Present status of the question of the origin of cosmic rays” Sov. Phys. Usp. 3 504–541 (1961)

N.A. Perfilov, Yu.F. Romanov, Z.I. Solov’eva “Fission of heavy nuclei with emission of long-range α particles” Sov. Phys. Usp. 3 542–550 (1961)

A.V. Sokolov, V.P. Shirokovskii “Group-theoretical methods in the quantum physics of solids (spatial symmetry)” Sov. Phys. Usp. 3 551–566 (1961)

A.I. Akhiezer, V.G. Bar’yakhtar, M.I. Kaganov “Spin waves in ferromagnets and antiferromagnets. I” Sov. Phys. Usp. 3 567–592 (1961)

Ya.B. Zel’dovich, S.S. Gershtein “Nuclear reactions in cold hydrogen I. mesonic catalysis” Sov. Phys. Usp. 3 593–623 (1961)

I.S. Marshak “Electric breakdown of gases at pressures close to atmospheric pressure” Sov. Phys. Usp. 3 624–651 (1961)

Personalia

L.A. Chernov “NIKOLAĬ NIKOLAEVICH ANDREEV (on his eightieth birthday)” Sov. Phys. Usp. 3 652–655 (1961)

B.M. Vul, E.A. Konorova, A.I. Demeshina “GEORGIĬ IVANOVICH SKANAVI” Sov. Phys. Usp. 3 656–659 (1961)