Impurity of Blood analyzes the proposition of Spanish racial thought in the late 19th and early 20th centuries that racial strength came from a fusion of different groups, rather than from a kind of racial purity. By providing a history of ethnic thought in Spain in the medieval and early modern era, and by studying the formation of racial thought in Spain's nascent human sciences and its political and cultural manifestations leading into the Franco regime, it provides a new view of racial thought in Europe and its connections to the larger twentieth century formation of racial thought in the West.

First multi-year cumulation covers six years: 1965-70.

Signs of Science: Literature, Science, and Spanish Modernity since 1868 traces how Spanish culture represented scientific activity from the mid-nineteenth century onward. The book combines the global perspective afforded by historical narrative with detailed rhetorical analyses of images of science in specific literary and scientific texts. As literary criticism it seeks to illuminate similarities and differences in how science and scientists are pictured; as cultural history it follows the course of a centuries-long dialogue about Spain and science.

"Collection of incunabula and early medical prints in the library of the Surgeon-general's office, U.S. Army": Ser. 3, v. 10, p. 1415-1436.