Stokes I (top; black line) and V (bottom; red line) spectra of all maser features in which we detected circular polarization. The blue lines show the best model fit to each V spectrum. The source, the maser identification, and the magnetic field strength along the line of sight given by the fit are presented in top-left corner of each plot. The x-axis shows V_LSR in km s^-1 and the y-axis the intensity in Jy/beam.