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⁴ Cf. Conrad, Robert, The Destruction of Brazilian Slavery, 1850–1888 (Berkeley and Los Angeles: University of California Press, 1972Google Scholar); Graham, Richard, “Causes for the Abolition of Negro Slavery in Brazil,” Hispanic American Historical Review, XLVI (1966), 123–37CrossRefGoogle Scholar; Stein, Stanley J., Vassouras: A Brazilian Coffee County, 1850–1900 (Cambridge, Mass.: Harvard University Press, 1957Google Scholar); and Knight, Franklin W., Slave Society in Cuba during the Nineteenth Century (Madison: University of Wisconsin Press, 1970Google Scholar).