  We have obtained 2640 CCD spectra with resolution ~4 Angstrom in the region
7250-9000 Angstroms for 976 stars lying near the red giant branches in
color-magnitude diagrams of 52 Galactic globular clusters. Radial velocities of
~16 km/second accuracy per star determined from the spectra are combined with
other criteria to assess quantitative membership probabilities. Measurements of
the equivalent widths of the infrared calcium triplet lines yield a relative
metal-abundance ranking with a precision that compares favorably to other
techniques. Regressions between our system and those of others are derived. Our
reduction procedures are discussed in detail, and the resultant catalog of
derived velocities and equivalent widths is presented. The metal abundances
derived from these data will be the subject of a future paper.

Astrophysics