We present a new homogeneous set of metallicity estimates based on Lick indices for the old globular clusters of the M31 galaxy. The final aim is to add homogeneous spectroscopic metallicities to as many entries as possible of the Revised Bologna Catalog of M31 (www.bo.astro.it/M31) clusters, by reporting Lick index measurements from any source (literature, new observations, etc.) on the same scale.
Cone search capability for table J/A+A/508/1285/tablea2 (Lick indices for M31 globular clusters taken from literature sources and reported into the Trager et al. (1998, Cat. J/ApJS/116/1) system (T98, Sect. 3.2))