A system of experimental philosophy, [electronic resource] : prov'd by mechanicks. Wherein the principles and laws of physicks, mechanicks, hydrostaticks, and opticks, are demonstrated and explained at large, by a great Number of curious Experiments: With a full Description of the Air-Pump, and the several Experiments thereon: As also of the different Species of Barometers, Thermometers, and Hydrometers; as shewn at the publick Lectures in a Course of Mechanical and Experimental Philosyphy. As performed by J. T. Desaguliers. M. A. F. R. S. Illustrated with several copper plates. To which is added, Sir Isaac Newton's colours: the description of the condensing engine, with its Apparatus: and Rowley's horary; a Machine representing the Motion of the Moon about the Earth; Venus and Mercury about the Sun, according to the Copernican System.