[SUMMARIZED TABLE OF CONTENTS]

Page
Introduction[3]
Contents[5][6]
Preface[7][10]
Introductory Essay[11][21]
CHAPTER I—DEVICES BY MEANS OF WHEELS AND WEIGHTS—
Wilars De Honecort; A Repetition of Wilars Honecort's plan; Leonardo da Vinci; A. Capra's Device; The Device of Dixon Vallance; Furman's Device; Schirrmeister's "Mechanical Movement;" James Ferguson's Device; B. Belidor's Device; Desagulier's Proposition on the Balance; John Haywood's Device; Explanation of the Failure of Wheels and Weights Devices to Accomplish Perpetual Motion[22][67]
CHAPTER II—DEVICES BY MEANS OF ROLLING WEIGHTS AND INCLINED PLANES—
Device by Mercury in Inclined Glass Tube and Heavy Ball on Inclined Plane; Series of Inclined Planes; Devices by Oscillating Trough and Cannon Balls; Unpublished Inclined Plane and Weights Devices Noted by the Author[68][75]
CHAPTER III—HYDRAULIC AND HYDRO-MECHANICAL DEVICES—
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—
Works of Tyros Known to Author; Momentum Defined, Differentiated, Measured and Explained; Energy Defined, Differentiated, Measured and Explained; Explanation by Author of Common Misconception of the Relation of Momentum and Energy and Attempts to thus Realize Perpetual Motion; the Fallacy Explained by Illustrations of Energy Required for and Represented by Acceleration and Retardation of Velocity; Property of Numbers Relating to; Arithmetical Progression Illustration[200][211]
CHAPTER X—THE ALLEGED INVENTIONS OF EDWARD SOMMERSET, SIXTH EARL AND SECOND MARQUIS OF WORCESTER, AND OF JEAN ERNEST ELI-BESSLER (COUNCILLOR) ORFFYREUS—
Intense Interest Caused by; Notice of Marquis of Worcester and Councillor Orffyreus and Periods in Which They Lived; Description by Marquis of Worcester of the Essentials of His Claimed Inventions; Excerpts From Remarks of Councillor Orffyreus on His Claimed Invention; Dedication by Councillor Orffyreus to God, the Public, to Men of Learning and to Himself as the Discoverer; Article Concerning the Orffyrean Wheel Published 1720 in Gentlemen's Magazine; Criticism by "A Constant Reader" of Attitude of W. Kenrick Concerning the Orffyrean Wheel; Article by Rev. J. T. Desagulier Concerning the Device of Marquis of Worcester and the Orffyrean Wheel; Excerpt from Dr. William Kenrick's Lecture on Perpetual Motion; De la Hire's Remarks Concerning Perpetual Motion; Letter from Prof. 's Gravesande to Sir Isaac Newton; Animadversions of Prof. Alliman on the Neglect of the Orffyrean inventions; Dr. Charles Hutton's Scientific Works and Notice of the Orffyrean Wheel; Remarks by the Author on the Historical Celebrity of These Inventions[212][255]
CHAPTER XI—CONSERVATION OF ENERGY. A DISCUSSION OF THE RELATION OF THE DOCTRINE OF CONSERVATION OF ENERGY, AND THE POSSIBILITY OF PERPETUAL MOTION—
Statement of Doctrine of Conservation of Energy; Upon What Proof of Doctrine Rests; Not Mathematically Proved; Conforms to Natural Phenomena; Multiplied Illustrations; Inter-changeability and Convertibility of Heat with Mechanical and Other Forms of Energy; Explanation of Heat and Energy Units, and Their Relative Equivalents; British Thermal Unit, Foot-Pound and Horse-Power and Their Mutual Relationship Explained; Further Illustrations; Galileo's Famous Pendulum Experiment; Apparent Anticipation of the Principle of Conservation of Energy[256][269]
CHAPTER XII—WILL PERPETUAL MOTION EVER BE ACCOMPLISHED?—
The Antiquity of the Problem; Remarks by Dircks, Newton, Galileo, Huyghens and Descartes; Generalizations of; Remarks by Author Concerning the Possibility of Perpetual Motion. Comments from Other Sources:
1 Denying the Possibility of Perpetual Motion,—Article by Dr. Papin; Article by Rev. John Wilkins; Article Based on Paradoxical Hydrostatical Balance; Article by P. Gregorio Fontana; Article by William Nicholson; Article Published in "The Artisan"; Article Published in "Mechanic's Magazine."
2 Asserting the Possibility of Perpetual Motion,—Scriptural Argument; Article by John Bernoulli; Article by P. Christopher Scheiner; Article by T. H. Pasley; Article Published in "The Pamphleteer"; Article by J. Welch; Article Published in "Mechanic's Magazine"[270][357]

[INDEX]

[Transcribers' Notes]

Inconsistent spelling and punctuation have been retained, as this book quotes many sources.