Reviews of topical problems

V.G. Pokazan’ev, G.V. Skrotskii “Pseudomagnetism” 22 943–959 (1979)

A.A. Tokovinin, P.V. Shcheglov “Achieving high resolution in Earth-based optical astronomy” 22 960–974 (1979)

From the history of physics

I.M. Frank “Einstein and optics” 22 975–986 (1979)