Key to the Universe, or a New Theory of Its Mechanism, Founded Upon a I. Continuous Orbital Propulsion, Arising from the Velocity of Gravity and Its Consequent Aberrations; II. Resisitng Ethereal Medium of Variable Density, with Mathematical Demonstrations and Tables
Orson Pratt, Sen · 1990 · Kubik Fine Books Ltd.
$75.00 (€67.23 | £56.23 | ¥11,911)
Layton, UT, Eborn Books, 1990. Hardcover. 118p. A hardcover book in fine condition with a like dustjacket. The text is clean and the binding tight. A reprint of a Mormon astronomer's theory of the universe, first published in 1879. .
