Enbon and Anderson's Pump; Device of "Ed. Vocis Rationis;" Böckler's Plates; John Linley's Hydraulic Device; Device of Author of the "Voice of Reason;" An Italian Device; P. Valentine Stansel's Device; Vogel's Device; A Water Wheel-Driven Pump; "A Journeyman Mechanic's" Device; James Black's Device; Archimedean Screw and Liquid; John Sims's Problem; A Perpetual Pump, by an Unknown Inventor; Explanation of the Failure of Hydraulic and Hydro-Mechanical Devices to Accomplish Perpetual Motion 76-117 CHAPTER IV--PNEUMATIC, SIPHON AND HYDRO-PNEUMATIC DEVICES-- The Hydrostatical Paradox; Pickering's Device; Stuckey's Device; Prof. George Sinclair's Device; Jacob Brazill's Device; Läserson's Device; Von Rathen & Ellis' Device; Richard Varley's Device; Siphon and Funnel Device; Orchard's Vacuum Engine; Robert Copland's Device; Eaton's Perpetual Siphon; Legge's Hydro-Pneumatic Power Device; Waterblowing Machine; Device by Means of Buoyancy Through Media of Different Densities; Device by Compressible and Distensible Bags in Liquid; George Cunningham's Mercurial Pneumatic Device; Explanation of the Failure of Pneumatic, Siphon and Hydro-Pneumatic Devices to Accomplish Perpetual Motion 118-162 CHAPTER V--MAGNETIC DEVICES-- A Magnetic Pendulum; Magnetic-Driven Wheel; Mackintosh's Experiment; Spence's Device; Joannis Theisneri's Semi-Circle; Device of Dr. Jacobus 163-174 CHAPTER VI--DEVICES UTILIZING CAPILLARY ATTRACTION AND PHYSICAL AFFINITY-- Ludeke & Wilcken's Device; the Jurin Device; Sir William Congreve, Notice of; His Perpetual Motion Devices and Writings 175-194 CHAPTER VII--LIQUID AIR AS A MEANS OF PERPETUAL MOTION-- Liquefaction of Air; Explanation of Conservation of Energy Applied to; Perpetual Motion by Means of Liquid Air Pompously Heralded; Failure Explained 195-196 CHAPTER VIII--RADIUM AND RADIO-ACTIVE SUBSTANCES CONSIDERED AS A CONCEIVED SOURCE OF PERPETUAL MOTION-- Perpetual Emanation of Energy; Radium Clock by Lord Rayleigh (Hon. R. J. Strutt); Lord Rayleigh Not a Perpetual Motion Worker but Thoroughly Scientific 197-199 CHAPTER IX--PERPETUAL MOTION DEVICES ATTEMPTING ITS ATTAINMENT BY A MISCONCEPTION OF THE RELATION OF MOMENTUM AND ENERGY--