[ROWNING, John] A Compendious System of Natural Philosophy, with notes containing the mathematical demonstrations and some occasional remarks, Cambridge: University Press, 1734-35 & London: for the Author, 1736 [part III], 3 parts in one volume, 8°, FIRST EDITION, 3 separate titles, 14 engraved plates (occasional light spotting), contemporary calf (worn) -- Jacques ROHAULT. System of Natural Philosophy, illustrated with Dr. Samuel Clarke's notes taken mostly out of Sir Isaac Newton's Philosophy, London: James, John and Paul Knapton, 1735, 2 volumes, 8°, third edition, titles in red and black, 27 folding engraved plates (occasional spotting), contemporary panelled calf. [Babson 104: "textbook of physics at Cambridge, it is important in the history of science ... as having been instrumental in introducing the Newtonian system"] (3)