kennett cott is associate professor of history at Washburn University of Topeka, Kansas. He received his Ph.D. from the University of New Mexico in 1979. His research has focused on the political and institutional history of the Porfiriato, with particular emphasis on the development policies of the federal government. He is currently in the preliminary stages of research on a biographical study of Vicente Riva Palacio.

david eltis teaches economic history at Algonquin College, Ottawa. He received a Ph.D. from the University of Rochester in 1979, and is the author of Economic Growth and the Ending of the Atlantic Slave Trade (Oxford University Press, forthcoming). His current research interest is the relationship between free and coerced migration in the Americas.

stanley e. hilton (Ph.D., University of Texas at Austin, 1969) is professor of history and director of Latin American Studies at Louisiana State University. He is the author of several books, including Brazil and the Creai Powers, 1930-1939 (1975), Hitler's Secret War in South America, 1939-1945 (1981), and A Guerra Civil Brasileira: História da Revolução Constitucionalista de 1932 (1982), and numerous articles focusing primarily on modern Brazilian history. He is currently finishing a book dealing with Brazil’s response to the Soviet challenge since 1917 and is also preparing a political biography of Oswaldo Aranha.

mary kay vaughan holds a Ph.D. in Latin American history from the University of Wisconsin, Madison. She is associate professor of history and Latin American Studies at the University of Illinois, Chicago. Her book The State, Education, and Social Class in Mexico, 1880-1930 was published in 1982. She is currently visiting professor at the Departamento de Investigaciones Educativas of the Centro de Estudios Avanzados. Instituto Politécnico Nacional, in Mexico. She is completing a research project on socialist education in the Cárdenas period in three Mexican stales, which has been supported by the Social Science Research Council and a Fulbright Research Award.

mark wasserman is associate professor of history at Rutgers, The State University of New Jersey. He earned his Ph.D. at the University of Chicago, studying with Friedrich Katz and John Coatsworth. The author of two books, be is currently writing a book on postrevolutionary Chihuahua, Mexico, and editing another on the regional history of postrevolutionary Mexico.