Key to the universe
Subtitle: 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.
By: By Orson Pratt, sen.
Edition: 2d ed. from the first European ed.
Publisher: The author
Published: 1879
Place of publication: Salt Lake City, Utah Territory
Language: eng
Number of pages: 118
Subjects: Cosmogony