The ammonia leak at the Willis packing house that closed Highway 35 for approximately two hours last week was apparently caused by a broken petcock, a small valve used to control the flow of liquid or gas, off the bottom of a receiver tank, said Wy’East Fire Chief Greg Borton.

There are certain matters of the heart that should be left to the experts, and mitral valve disease is one of them. Dr. Joseph Lamelas, associate chief of cardiac surgery in the Michael E. DeBakey Department of Surgery at Baylor College of Medicine, gives some insight into the disease and its treatment.