Courtney Fullilove. The Profit of the Earth: The Global Seeds of American Agriculture. 280 pp., figs., index. Chicago/London: University of Chicago Press, 2017. $40 (cloth).Helen Anne Curry. Evolution Made to Order: Plant Breeding and Technological Innovation in Twentieth-Century America. x + 285 pp., figs., bibl., index. Chicago/London: University of Chicago Press, 2016. $45 (cloth).
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