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. Resisting Ethereal Medium of Variable Density. With Mathematical Demonstrations and Tables. Orson Pratt.
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. Resisting Ethereal Medium of Variable Density. With Mathematical Demonstrations and Tables

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. Resisting Ethereal Medium of Variable Density. With Mathematical Demonstrations and Tables

Salt Lake City: Published by the Author, and for Sale at the Historian's Office, 1879. Second Edition. 118pp. Octavo [22.5 cm] Blue cloth with the title and illustration gilt stamped on the front board. Better than very good. Printed rules of the Tenth Ward library is attached to the front pastedown [10.5 cm x 8.5 cm] (c.1890). Item #1783

'For Sale' notice for this work and Pratt's work 'Cubic and Biquadratic Equations' laid in [18.5 cm x 11.5 cm]. This notice is not something we have previously encountered.

Nicer than usually seen copy of this work. Flake/Draper 6507. The title page states that this second edition is from the First European Edition, but according to Flake/Draper: "No European edition seems to exist"

Price: $200.00

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