Multiple Periodic Variable Stars

Invited Papers.- 1. V. P. Tsessevich: On Double Periodicity in the Light Variation of Variable Stars.- 2. J. R. Lesh and M. L. Aizenman: Observational Aspects of Multiperiodicity in the ? Canis Majoris Stars.- 3. S. Kato: On Excitation Mechanisms of Pulsation in ? Cephei Stars.- 4. S. C. Wolff: The Magnetic Variable Stars.- 5. P. R. Wood: Red Variables.- 6. R. S. Stobie: Cepheids.- 7. A. N. Cox and J. P. Cox: Cepheid Pulsation Theory and Multiperiodic Cepheid Variables.- 8. B. Szeidl: Multiple Periodic RR Lyrae Stars: Observational Review.- 9. R. F. Stellingwerf: Theory of Multiperiodic RR Lyrae Stars.- 10. W. S. Fitch: Multiperiodicity in RRs and ? Scuti Stars: an Observational View.- 11. J. O. Petersen: ? Scuti and RRs Type Variables: Theoretical Aspects.- 12. A. Baglin: Rotation Mixing and Variability in A Stars.- 13. B. Warner: Multiple Periodicities in Cataclysmic Variable and White Dwarf Stars.- 14. H. M. Van Horn: Non-Radial Oscillations of Degenerate Dwarfs: a Theoretical Review.- 15. D. S. Hall: The RS CVn Binaries and Binaries with Similar Properties.