A SOVIET broadcast announces that a commission set up by the Academy of Sciences of the U.S.S.R. to observe the total solar eclipse of June 9 next year has opened its first plenary session in Moscow. Prominent astronomers from Moscow, Leningrad, Kiev and other cities are taking part in the scheme. The band of totality passes from America through Norway, Sweden and Finland, crossing into Soviet territory near Lake Ladoga, and then stretching through Yaroslavl, Ivanovo, south of Gorki and Kuibyshev and north of Uralsk. The longest period of totality in the U.S.S.R. will be near Lake Ladoga, where it will last 61 seconds. Twenty Soviet expeditions are being organized. The Sternberg Astronomical Institute and similar bodies in Kiev, Kharkov and Kazan are to take part. Most of the sites of the expeditions are concentrated in the areas of Rybinsk and Yaroslavl. Preparations for observing the eclipse are also well forward in Sweden. A paper by Grönstrand, which is to appear in the Annals of the Stockholm Observatory, gives the circumstances of the eclipse in northern Sweden, and a party led by Lindblad plans to observe the flash spectrum.