Today's Globe: pedometers, Salome Gluecksohn-Waelsch, Samuel Leonard

While loosening your belt after Thanksgiving dinner, you may want to clip a pedometer to it. That's because wearing a step counter leads to weight loss and lower blood pressure, according to research reported yesterday. The researchers found that a pedometer is an unusually good motivator to get people to walk more.

Dr. Salome Gluecksohn-Waelsch, a geneticist who had fled Nazi Germany to pursue her studies and whose subsequent research in New York shed light on fundamental questions of development in mammals, died Nov. 7 at her home in Manhattan. She was 100.

Samuel Leonard, a Cornell University professor whose pioneering work in reproductive endocrinology in the 1930s led to development of the birth control pill, died Nov. 12 at his home, just four days before his 102d birthday.