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DIED. ADOLF BUTENANDT, 91, German scientist who won the 1939 Nobel Prize for Chemistry for his pioneering work on hormones; in Munich. Beginning in 1929, Butenandt isolated a number of previously unknown sex hormones, including progesterone, which maintains pregnancy. The knowledge of hormonal structure gained from this research made possible the development of the birth-control pill. A Nazi law forced Butenandt to decline his Nobel Prize, which he finally received in 1949. After the war, he helped rebuild Germany's scientific community as head of the Max Planck Institute for Biochemistry. DIED. THOMAS MAYNE, 93, Australian industrial chemist who invented the Milo chocolate malt drink that is a staple in Asian and Australian households; in Sydney. Working for the Swiss food giant Nestle, Mayne spent four years experimenting before he perfected a recipe for the Milo powder mix that Nestle launched in 1934. Today 90,000 tons of Milo worth $420 million are sold each year in 30 countries.