IN MEMORIAM: Dr. Alfred Jaretzi III, 94; Bassett Physician Of International Repute COOPERSTOWN Word has been received that Dr. Alfred Jaretzi III, 94, a former Bassett Hospital physician whose work on the thymus gland won him an international reputation, died last Thursday. He had homes in New York City and Essex, Conn. Locally, he was a founding member of the Village Planning Board. A memorial service will be at 5 p.m. Wednesday, June 18 at the Knickerbocker Club in New…