Niall SHANKS & Robert B. GARDNER: Introduction. Charles MORGAN: Canonical Models and Probabilistic Semantics. Commentary by François Lepage. Reply by Morgan. François LEPAGE: A Many-Valued Probabilistic Logic. Commentary by Charles Morgan. Reply by Lepage. Piers RAWLING: The Exchange Paradox, Finite Additivity, and the Principle of Dominance. Commentary by Robert B. Gardner. Reply by Rawling. Susan VINEBERG: The Logical Status of Conditionalization and its Role in Confirmation. Commentary by Piers Rawling. Reply by Vineberg. Deborah MAYO: Science, Error Statistics, and Arguing from Error. Commentary by Susan Vineberg. Reply by Mayo. Mark N. LANCE: The Best is the Enemy of the Good: Bayesian Epistemology as a Case Study in Unhelpful Idealization. Commentary by Leszek Nowak. Reply by Lance. Robert B. GARDNER & Michael C. WOOTEN: An Application of Bayes' Theorem to Population Genetics. Commentary by Lynne Seymour. Reply by Gardner and Wooten. Peter D. JOHNSON, Jr.: Another Look at Group Selection. Commentary by Niall Shanks. Reply by Johnson. Cory F. JUHL: Teleosemantics, Kripkenstein and Paradox. Commentary by Daniel Bonevac. Reply by Juhl. Daniel BONEVAC: Constitutive and Epistemic Principles. Commentary by Mark Lance. Reply by Bonevac. Otávio BUENO: Empiricism, Mathematical Truth and Mathematical Knowledge. Commentary by Chuang Liu. Reply by Bueno. Chuang LIU: Coins and Electrons: A Unified Understanding of Probabilistic Objects. Commentary by Steven French. Reply by Liu. Anna MAIDENS: Are Electrons Vague Objects? Commentary by David Over. Reply by Maidens.