Tel Aviv University, The Netherlands
G. E. Tauber
Astronomical Observatory, Ondrejov (Prague), Czechoslovakia
Zdenek Ceplecha
University of California, Berkeley
Nello Pace
Dept. of Biochemistry, Cambridge, U.K.
Rudolph A. Peters
The Astronomical Institute, Utrecht
W. de Graaff
University of Rochester, Rochester, New York
Wolf V. Vishniac
Astronomy Centre, University of Sussex, Sussex, Switzerland
M. J. Rees
Sterrewacht, Leiden
K. K. Kwee
Arbeitsgruppe für Physikalische Weltraumforschung, Freiburg im Br., FRG
K. Rawer
The Astronomical Institute, Utrecht
C. de Jager
Laboratory for Solar Physics, NASA-Goddard Space Flight Center, 20771, Greenbelt, Maryland
John C. Brandt
SEP-Saclay B.P. 2, 91, Gif-sur-Yvett, France
H. Reeves
The Astronomical Institute, Ondřejov
J. Kleczek
The Astronomical Institute, Utrecht
A. D. Fokker
The University College of London, London, U.K.
M. J. Seaton
Armagh Observatory, Northern Ireland
E. J. Öpik