We present detailed chemical abundances for > 20 elements in \sim 30 globular clusters in M31 .
These results have been obtained using high resolution ( \lambda / \Delta \lambda \sim 24,000 ) spectra of their integrated light and analyzed using our original method .
The globular clusters have galactocentric radii between 2.5 kpc and 117 kpc , and therefore provide abundance patterns for different phases of galaxy formation recorded in the inner and outer halo of M31 .
We find that the clusters in our survey have a range in metallicity of -2.2 < [ Fe/H ] < -0.11 .
The inner halo clusters cover this full range , while the outer halo globular clusters at R > 20 kpc have a small range in abundance of [ Fe/H ] = -1.6 \pm 0.10 .
We also measure abundances of alpha , r- and s-process elements .
These results constitute the first abundance pattern constraints for old populations in M31 that are comparable to those known for the Milky Way halo .