In little more than a decade since the publication of the first edition of Science for Agriculture the book has become a classic in its field. The book celebrated over a century of contributions by the United States Department of Agriculture—State Agricultural Experimentation research system to the growth of production and productivity of American agriculture. This second edition is much more than an updating of their earlier work. It raises a series of questions about the future intellectual, economic, and political viability of the system in a world in which the structure of both the agricultural industry and the agricultural-research system has experienced dramatic change