Max Jammer, The Philosophy of Quantum Mechanics: The Interpretations of Quantum Mechanics in Historical Perspective (New York: John Wiley & Sons, 1974); Michael Redhead, Incompleteness, Nonlocality, and Realism: A Prolegomenon to the Philosophy of Quantum Mechanics (Oxford: Clarendon Press, 1987); Francisco J. Ayala, "Can 'Progress' Be Defined as a Biological Concept?" in Evolutionary Progress, ed. Matthew H. Nitecki (Chicago: University of Chicago Press, 1988), 75-96; James T. Cushing and Ernan McMullin, Editors, Philosophical Consequences of Quantum Theory: Reflections on Bell's Theorem (Notre Dame: University of Notre Dame Press, 1989); Abner Shimony, "Conceptual Foundations of Quantum Mechanics," in The New Physics, ed. Paul Davies (Cambridge: Cambridge University Press, 1989); Chris J. Isham, Lectures on Quantum Theory: Mathematical and Structural Foundations (London: Imperial College Press, 1995); Sheldon Goldstein, "Quantum Theory Without Observers," Physics Today, March and April 1998. For an accessible account see Nick Herbert, Quantum Reality: Beyond the New Physics (Garden City, N.Y.: Anchor Press; Doubleday, 1985).