Space and Spirit: Theories of the Universe and the Arguments for the Existence of God Paperback $18.95
A History of the Theories of Aether and Electricity: From the Age of Descartes to the Close of the Nineteenth Century (1910), (Fully Illustrated) Paperback $17.93
A History of the Theories of Aether and Electricity: From the Age of Descartes to the Close of the Nineteenth Century (1910), (Fully Illustrated) Hardcover $27.43
