Accessible classic by a world-famous mathematician covers geometry and the shape of the earth, space and time in astronomy, abstract geometry and geographical maps, continuity and topology, the propagation of light, the special and general theories of relativity, and theoretical and experimental researches. 1926 edition. Includes 15 figures.

Space and Time 2007, Case Press, Alcester

ISBN-13: 9781406771046

Trade paperback

Space and Time 2003, Dover Publications, Mineola, NY

ISBN-13: 9780486495453