MATTERN BACK TO WORK Officer Who Was 8hot, by Robbers Returns to His Beat- Beat- Officer George Mattern, who was shot hy three holdup men Aug. fi when ho. attempted to arren them after they held up a temp brew bar on West Lot st street, went back to his beat yesterday. Attending physicians at the hos-p'.ttil hos-p'.ttil hos-p'.ttil had given up all hope for his recovery. The bullet entered Mat tern s abdomen and took an upward upward eourse piercing his intestines fourteen times, so that It was neces sary for doctors to take twenty- twenty- seven stitches. The gunmen have never heen caught.