Karl Ulrichs's studies of sexual diversity galvanized the burgeoning field of sexual science in the nineteenth century. But in the years since, his groundbreaking activism has overshadowed his scholarly achievements. Ulrichs publicly defied Prussian law to agitate for gay equality and marriage, and founded the world's first organization dedicated to the legal and social emancipation of homosexuals. Ralph M. Leck returns Ulrichs to his place as the inventor of the science of sexual heterogeneity. Leck's analysis situates sexual science in a context that includes politics, aesthetics, the languages of science, and the ethics of gender. Although he was the greatest nineteenth-century scholar of sexual heterogeneity, Ulrichs retained certain traditional conjectures about gender. Leck recognizes these subtleties and employs the analytical concepts of modernist vita sexualis and traditional psychopathia sexualis to articulate philosophical and cultural differences among sexologists. Original and audacious, Vita Sexualis uses a bedrock figure's scientific and political innovations to open new insights into the history of sexual science, legal systems, and Western amatory codes.

How is a nation brought into being? In a detailed examination of crucial texts of eighteenth-century American literature, Christopher Looby argues that the United States was self-consciously enacted through the spoken word. Historical material informs and animates theoretical texts by Derrida, Lacan, and others as Looby unravels the texts of Benjamin Franklin, Charles Brockden Brown, and Hugh Henry Brackenridge and connects them to nation-building, political discourse, and self-creation. Correcting the strong emphasis on the importance of print culture in eighteenth-century America, Voicing America uncovers the complex process of early American writers articulating their new nation and reveals a body of literature and a political discourse thoroughly concerned with the power of vocal language.