JAMES DEWAR, M.A., LL.D., F.R.S., M.R.I. FULLERIAN PROFESSOR OF CHEMISTRY, R.I. JACKSON PROFESSOR, UNIVERSITY OF CAMBRIDGE, IN ADMIRATION OF HIS DISTINGUISHED SERVICES FOR SCIENCE, AND IN GRATEFUL ACKNOWLEDGMENT OF HIS PROLONGED AND STEADFAST INTEREST IN KEELY'S WORK OF EVOLUTION. 12, Great Stanhope Street, Mayfair, 16th May, 1893. CONTENTS.   PAGE Preface.--By the Rev. John Andrew xi Introduction xv CHAPTER I. 1872-1882. Introductory 1 CHAPTER II. 1882-1886. Ether the True Protoplasm, An Epitome of Macvicar's Sketch of a Philosophy 11 CHAPTER III. 1885-1887. The Nature of Keely's Problems 30 CHAPTER IV. 1887. Sympathetic Vibratory Force 41 CHAPTER V. Etheric Vibration.--The Key Force 54 CHAPTER VI. The Fountain Head of Force 65 CHAPTER VII. The Key to the Problems.--Keely's Secrets 72 CHAPTER VIII. 1888. Helpers on the Road, and Hinderers 101 CHAPTER IX. 1889-1890. Keely supported by Eminent Men of Science.--Aerial Navigation 113 CHAPTER X. 1881-1891. The Keely Motor Bubble.--Macvicar's Logical Analysis 129 CHAPTER XI. 1890. Vibratory Sympathetic and Polar Flows.--Keely's Contributions to Science 145 CHAPTER XII. Vibratory Physics.--True Science 167 CHAPTER XIII. "More Science" 186 CHAPTER XIV. Vibratory Physics.--The Connecting Link between Mind and Matter 206 CHAPTER XV. The Philosophy of History.--Keely the Founder of a System 229 CHAPTER XVI. 1891. An Appeal in Behalf of the Continuance of Keely's Researches 238 CHAPTER XVII. 1891. More of Keely's Theories.--His Traducers exposed 265 CHAPTER XVIII. A Pioneer in an Unknown Realm 285 CHAPTER XIX. Latent Force in Interstitial Spaces.--Electro-Magnetic Radiation.--Molecular Dissociation. By John Ernst Worrell Keely 298 CHAPTER XX. 1892. Progressive Science.--Keely's Present Position.--A Review of the Situation 319 CHAPTER XXI.