The distinguished mathematician offers undergraduate students and other readers an absorbing exploration of the fundamental problems of substance, space, and time. The discussions are highlighted by a criticism of Einstein's method of interpreting results, and by the author's alternative development of the theory of the four-dimensional space-time manifold. 1920 edition.
Here's a sample of other books in this Dover category
Space, Time, Matter by Hermann Weyl Excellent introduction probes deeply into Euclidean space, Riemann's space, Einstein's general relativity, gravitational waves and energy, and laws of conservation. "A classic of physics." — British Journal for Philosophy and Science.
