An Abridgment of the Architecture of Vitruvius. Vitruvius Pollio

viz. of their Springs, of their Nature, and Properties; how they are to be sought; and of the Conduits that are to bring them to Cities and Villages.

      The Ninth is wholly Gnomonical, and teaches the manner of making Sun-Dials, and gives an account of the Rules of Geometry, how to measure solid Bodies. He discourses at large of the Course of the Stars, and the particular Description of those that are called Fixed Stars.

       The Last is taken up wholly in the Description of making Machines to lift up great Weights, and others for several uses; viz. for the Elevation of Water for Corn-Mills, Water-Organs and Measuring the Way as well by Sea as by Land; but it chiefly treats of Machines fit for the use of Building and War.