PREFACE.
ILLUSTRATIONS.
THE
GREAT PHYSICAL FORCES.
CHAPTER I.
INTRODUCTORY.
CHAPTER II.
WHAT IS PROPOSED.
CHAPTER III.
THE GREAT FORCES, THEIR CHARACTER AND OPERATIONS.
CHAPTER IV.
SUNLIGHT.
CHAPTER V.
SUN-HEAT.
CHAPTER VI.
THE SEASONS.
CHAPTER VII.
GRAVITY.
CHAPTER VIII.
THE ATMOSPHERE.
CHAPTER IX.
WINDS.
CHAPTER X.
SUN-SPOTS.
CHAPTER XI.
SOUND.
CHAPTER XII.
SOME OF THE RESULTS OF THE FOREGOING THEORIES.
CHAPTER XIII.
THE DIRECT INFLUENCE OF THESE FORCES AS CAUSATION OF DISEASE.
CHAPTER XIV.
THE ARTIFICIAL PRODUCTION OF LIGHT, HEAT, AND POWER, AND THEIR UTILIZATION.
CHAPTER XV.
WHY WAS NOT THIS DISCOVERY SOONER MADE?
APPENDIX.
ADDENDUM.
