 when a hurried lunch leaves your stomach upset and on edge, when a nagging headache slows you down, makes it hard for you to think straight, or when a full day of heavy physical labor leaves your muscles stiff and sore. You just can't afford to let these common ailments slow you down these days. So keep Alka-Seltzer on the job to help you keep on the job. Better ask your druggist for a 30 or 60 cent size package of Alka-Seltzer tablets on your way to work tomorrow. Many's the time you'll be glad you did.