Contributors for this volume include Professor Michael Jubien (University of California, Davis), professor David Braun (University of Rochester, NY), Professor Michael Devitt (University of Maryland), Professor William G. Lycan (University of North Carolina), Professor Penelope Maddy (University of California, Irvine), Professor Nathan Salmon (University of California, Santa Barbara), Professor Theodore Sider (Syracuse University), Professor Robert Stalnaker (Massachusetts Institute of Techonology), Professor James van Cleve (Brown University), Professor Edward N. Zalta (Standford University).