* Dr. John McLean Morris, 78, a leading gynecologic researcher who discovered the "morning after" birth-control pill and made important contributions to cancer treatment, died Thursday at his home in Woodbridge, Conn. The cause was prostate cancer, his family said. For 35 years, he was a professor and chief of gynecology at Yale University School of Medicine and Yale-New Haven Medical Center and twice was the school's acting chairman of obstetrics and gynecology. He was also a practicing surgeon, an author and a leader in medical societies and population-control efforts. He officially retired six years ago but remained active in his field. His career in medicine, women's health and birth control stemmed from the human misery he witnessed while growing up in China, where his father was a Presbyterian missionary. His best-known achievement was the morning-after pill, whose use he developed in the 1960s with Dr. Gertrude Van Wagenen in experiments on monkeys.
* Isaac F. Rojas, 86, a retired admiral and commander of the naval forces that toppled Argentine dictator Juan Peron in 1955, died yesterday of a heart ailment in Buenos Aires, his family reported. He became vice president of the military regime that succeeded Peron from September 1955 through June 1958. He remained the hero of staunchly anti-Peronist groups who demanded that Peron's supporters be permanently banned from Argentine politics. Peronism was banned from 1955 to 1973, when Peron returned from 18 years in exile to become president for the third term. He died in office in 1974 and was succeeded by his vice president and third wife, Isabel, who was toppled by another coup in 1976.