Page:A Treatise of the Mechanical Powers - Motte - 1733.djvu/9

 begins with the Laws of Motion. Not that this previous Step is abolutely necearyj it being eaie to have hewn the Properties of the Mechanical Powers without it. But the Importance of thoe Principles being o great, and the Undertanding of them being a convenient tho' not a neceary Introduction to the remaining part, I am Peruaded the Reader will not be dipleaed to meet them there. Their extenive ue as being the Foundation of all Natural Philoophy, inclined me to treat of them more diffuely than has hitherto been done; partly for an Introduction to higher Speculations, and partly becaue it has been my fortune to meet ome times with ingenious perons, but not converant in thee matters, who have not o readily undertood and aented to ome things relating to them, as one would have expected.

From thoe Principles the Properties of the Mechanical Towers are demontrated; in the doing of which, Mathematical Terms have been avoided as much