Informatione del pestifero et contagioso morbo (review)
reveals the emergence of the mathematician as a distinct intellectual and social category, a category that did not admit the more generally trained humanist. Finally, a number of these essays deal implicitly with the problem of identifying marginalia: two address the problem directly. Brigitte Mondrain’s essay opens the collection, offering both a formal analysis of marginalia as well as an analysis of the types of marginal annotations. She concentrates on how types of readers have annotated manuscripts. Adolfo Tura’s long concluding essay focuses on how marginalia can be philological tools. He offers a robust typology of marginalia and indicates how they can be used to unravel philological questions. Besides what has been mentioned here, these essays have much to offer. Scholars interested in particular texts or routes of transmission will appreciate the contributions of individual chapters. More generally, these detailed and erudite essays offer models for how historians, perhaps especially historians of science, might use marginalia to deepen and refine their work. DARIN HAYTON Haverford College