Barbara Herrnstein Smith is Professor of Comparative Literature and English and Director of the Center for Interdisciplinary Studies in Science and Cultural Theory at Duke University. Arkady Plotnitsky is Visiting Scholar at Duke University’s Center for Interdisciplinary Studies in Science and Cultural Theory.

• Introduction: Networks and Symmetries, Decidable and Undecidable / Barbara Herrnstein Smith and Arkady Plotnitsky Thinking Dia-Grams: Mathematics, Writing, and Virtual Reality / Brian Rotman Concepts and the Mangle of Practice: Constructing Quaternions / Andrew Pickering The Moment of Truth on Dublin Bridge: A Response to Andrew Pickering / Owen Flanagan Explanation, Agency, and Metaphysics: A Reply to Owen Flanagan / Andrew Pickering Agency and the Hybrid Collectif / Michel Callon and John Law The Accidental Chordate: Contingency in Developmental Systems/ Susan Oyama Complementarity, Idealization, and the Limits of Classical Conceptions of Reality / Arkady Plotnitsky Is “Is a Precursor of” a Transitive Relation? / E. Roy Weintraub Fraud by Numbers: Quantitative Rhetoric in the Piltdown Forgery Discovery / Malcolm Ashmore A Glance at SunSet: Numerical Fundaments in Frege, Wittgenstein, Shakespeare, and Beckett / John Vignaux Smyth Microdynamics of Incommensurability: Philosophy of Science Meets Science Studies / Barbara Hernnstein Smith Notes on Contributors Index

Barbara Herrnstein Smith is Professor of Comparative Literature and English and Director of the Center for Interdisciplinary Studies in Science and Cultural Theory at Duke University. Arkady Plotnitsky is Visiting Scholar at Duke University’s Center for Interdisciplinary Studies in Science and Cultural Theory.

• Introduction: Networks and Symmetries, Decidable and Undecidable / Barbara Herrnstein Smith and Arkady Plotnitsky Thinking Dia-Grams: Mathematics, Writing, and Virtual Reality / Brian Rotman Concepts and the Mangle of Practice: Constructing Quaternions / Andrew Pickering The Moment of Truth on Dublin Bridge: A Response to Andrew Pickering / Owen Flanagan Explanation, Agency, and Metaphysics: A Reply to Owen Flanagan / Andrew Pickering Agency and the Hybrid Collectif / Michel Callon and John Law The Accidental Chordate: Contingency in Developmental Systems/ Susan Oyama Complementarity, Idealization, and the Limits of Classical Conceptions of Reality / Arkady Plotnitsky Is “Is a Precursor of” a Transitive Relation? / E. Roy Weintraub Fraud by Numbers: Quantitative Rhetoric in the Piltdown Forgery Discovery / Malcolm Ashmore A Glance at SunSet: Numerical Fundaments in Frege, Wittgenstein, Shakespeare, and Beckett / John Vignaux Smyth Microdynamics of Incommensurability: Philosophy of Science Meets Science Studies / Barbara Hernnstein Smith Notes on Contributors Index