This title is part of UC Press's Voices Revived program, which commemorates University of California Press’s mission to seek out and cultivate the brightest m

I consider philosophy rather than arts and write not concerning manual but natural powers, and consider chiefly those things which relate to gravity, levity, el

Newton's Principia by Sir Isaac Newton is presented here in a high quality paperback edition. This publication was produced from a professional scan of an origi

This work has been selected by scholars as being culturally important, and is part of the knowledge base of civilization as we know it. This work is in the "pub