Acknowledgements; Part I. Measurment in Quantum Theory: 1. Role of the observer in quantum theory; 2. Approximate measurement in quantum mechanics with Mary H. Fehrs; 3. Proposed neutron interferometer test of some non-linear variants of wave mechanics; 4. Desiderata for modified quantum mechanics; 5. Filters with infinitely many components; 6. Proposed neutron interferometer observation of the sign change of a spinor due to 2? precession with Michael A. Horne; Part II. Quantum Entaglement and Nonlocality: 7. Experimental consequences of local hidden-variable theories; 8. An exposition of Bell's theorem; 9. Contextual hidden variables theories and Bell's inequalities; 10. Controllable and uncontrollable nonlocality; 11. Events and processes in the quantum world; 12. An exchange on local beables: comment on Bell's theory with Michael A. Horne and John F. Clauser; 13. Physical and philosophical issues of the Bohr-Einstein debate; Part III. Complex Systems: 14. The methodology of synthesis: parts and wholes in low energy physics; 15. Some proposals concerning parts and wholes; 16. The non-existence of a principle of natural selection: reply to Sober; Part IV. Time: 17. Towards a revision of the protophysics of time; 18. The transient now; Part V. The Mental and the Physical: 19. Quantum physics and the philosophy of Whitehead; 20. Reflections on the philosophy of Bohr, Heisenberg and Schrödinger; 21. Wave-packet reduction as a medium of communication with Joseph Hall, Christopher Kim, and Brian MecElroy; Index.