Walter Ott is Professor of Philosophy at the University of Virginia. He is the author of Descartes, Malebranche, and the Crisis of Perception (2017), Causation and Laws of Nature in Early Modern Philosophy (2009), and Lockes Philosophy of Language (2004). His work has appeared in such journals as Archiv fur Geschichte der Philosophie and Philosophy and Phenomenological Research. Lydia Patton is an Associate Professor at Virginia Tech. She edited Philosophy, Science, and History: A Guide and Reader (2014), and co-edited, with Benjamin Jantzen and Deborah Mayo, a special issue of Synthese on ontology and methodology. Her work has appeared in Synthese, Studies in History and Philosophy of Science, Kant-Studien, and Historia Mathematica, among others, and in The Oxford Handbook of German Philosophy in the Nineteenth Century. She is editor-in-chief of HOPOS.