Böcker i Heidelberg Science Library-serien

THE idea of collecting these essays occurred to me when, in the leisure of retire ment, I scanned some of my own books and found that two of the more widely read show a startling change of attitude to some of the fundamental concepts of science.

The titling of this book - "Facing Reality" - came to me unbidden, presumably from my subconscious! The other component of the title - "Reality" - is the ultimate reality for each of us as conscious beings - our birth - our self-hood in its long stream of becoming throughout our life - our death and apparent annihilation.

This geometry, also called hyperbolic geometry, is part of the required subject matter of many mathematics departments in universities and teachers' colleges-a reflec tion of the view that familiarity with the elements of hyperbolic geometry is a useful part of the background of future high school teachers.

There is growing evidence that an amalgamation of systems theories and communication and information theories will become the leading conceptual model for addressing human behavior.

The history of science is mostly written retrospec tively, a generation or two after the actual events being discussed.