This volume contains the papers and discussions at IAU Colloquium No. 21 on Variable Stars in Globular Clusters and in Related Systems held in Toronto on the 29

Proceedings of IAU Symposium No. 67 held in Moscow, U.S.S.R., July 29-August 4, 1974

An accessible introduction to globular clusters for graduate students, and a comprehensive and up-to-date reference for researchers.

Red giant stars are evolutionarily advanced objects in the closing stages of their nuclear burning lifetime. Observed with increasing spectral coverage they dis

This volume contains the fifteenth tri-annual reports of the Presidents of the forty Commissions of the International Astronomical Union; it refers to the progr