This vintage book contains a fascinating book on scientific theory and development, written by sir Arthur Eddington. It contains a discussion of the philosophical outlook of modern science, a summary of then-contemporary knowledge, and a number of fascinating and insightful lectures on the various scientific topics. The chapters of this book include: ‘Science and Experience’, ‘Dramatis Personae’, ‘The End of the World’, ‘The Decline of Determinism’, ‘Indeterminacy and Quantum Theory’, ‘Probability’, ‘The Constitution of the Stars’, ‘Subatomic Energy’, ‘Cosmic Clouds and Nebulae’, and more. We are republishing this vintage text now in an affordable, modern edition – complete with a specially commissioned new biography of the author.