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Died. Emil Georg Buehrle, 66, multimillionaire art collector and sole owner of Switzerland's vast armaments-making Oerlikon Machine Tool Works; of a heart attack; in Zurich. German-born Weapons-Maker Buehrle, reputedly Switzerland's richest man, got his firm blacklisted during World War II by peddling his 20-mm. antiaircraft gun to the Axis.

Died. Lieut. General Lewis Andrew Pick, 66, U.S. Army (ret.), onetime (1949-52) chief of Army Engineers, who rammed through (1943-45) the Army's tortuous, 478-mile Ledo Road ("Pick's Pike") through Burma, later (1946) began construction of a dam network project (the Pick-Sloan plan) to tame the rambunctious Missouri River, directed (1949) "Operation Snowbound" to relieve storm-clogged Northern states, while head of Army Engineers built the Air Force base at Thule, Greenland; in Washington, D.C.

Died. Harry C. Black, 69, Baltimore philanthropist and board chairman (since 1930) of the A. S. Abell Co., publishers of the Sunpapers; of a heart attack; in Boynton Beach, Fla.

Died. Edward Joseph Hart, 70, onetime (1911) All-America tackle, twice (1910-11) captain of Princeton's football team, who once played two games while wearing a cast for a broken neck; of a heart attack; in Toronto. The late Grantland Rice's estimate: "One of the great tackles of all time."

Died. Jean Schwartz, 78, Hungarian-born oldtime vaudeville pianist and songwriter, who composed Chinatown, My Chinatown (with longtime Partner William Jerome), Al Jolson's Rock-a-Bye Your Baby with a Dixie Melody, and Hello Central, Give Me No Man's Land; in Sherman Oaks, Calif.

Died. George Thomas Moore, 85, noted botanist, leading authority on algae, and longtime (1912-50) director of St. Louis' famed Missouri Botanical Garden; in St. Louis.