Combining Texts

You have chosen 'Thinking and Experience' by H.H. Price, 'The Value of Science' by Henri Poincar and 'A World of States of Affairs' by David M. Armstrong

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All the ideas for Natural Reality, or select a subheading:
      A. Classical Physics
      B. Modern Physics
      C. Space
      D. Time
      E. Cosmology
      F. Chemistry
      G. Biology