The Nobel Prize in Chemistry 1946 N "for his discovery "for their preparation of enzymes that enzymes and virus proteins in a pure form" can be crystallized" James Batcheller John Howard Wendell Meredith Sumner Northrop Stanley 1/2 of the prize 1/4 of the prize 1/4 of the prize USA USA USA Cornell University Rockefeller Institute Rockefeller Institute 1887-1955 USA1891-1987 USA1904-1971 22 主讲：汤华 22 主讲：汤 华 Cornell University 1887 - 1955 Rockefeller Institute USA 1891 - 1987 Rockefeller Institute USA 1904 - 1971