| | | PAGE |
| INTRODUCTION | | [1] |
| CHAPTER | | |
| I. | EARLY VIEWS OF ELECTRICITY | [6] |
| II. | THE EXTENSION OF THE ELECTROLYTIC LAWS TO
CONDUCTION IN GASES | [25] |
| III. | EARLY ATTEMPTS AT THE DIRECT DETERMINATION
OF | [45] |
| IV. | GENERAL PROOF OF THE ATOMIC NATURE OF ELECTRICITY | [66] |
| V. | THE EXACT EVALUATION OF | [90] |
| VI. | THE MECHANISM OF IONIZATION OF GASES BY X-RAYS
AND RADIUM RAY | [125] |
| VII. | BROWNIAN MOVEMENTS IN GASES | [145] |
| VIII. | IS THE ELECTRON ITSELF DIVISIBLE? | [158] |
| IX. | THE STRUCTURE OF THE ATOM | [182] |
| X. | THE NATURE OF RADIANT ENERGY | [232] |
| APPENDIX A. | FROM MOBILITIES AND DIFFUSION COEFFICIENTS | [262] |
| APPENDIX B. | TOWNSEND’S FIRST ATTEMPT AT A DETERMINATION OF | [265] |
| APPENDIX C. | THE BROWNIAN-MOVEMENT EQUATION | [268] |
| APPENDIX D. | THE INERTIA OR MASS OF AN ELECTRICAL
CHARGE ON A SPHERE OF RADIUS | [272] |
| APPENDIX E. | MOLECULAR CROSS-SECTION AND MEAN
FREE PATH | [275] |
| APPENDIX F. | NUMBER OF FREE POSITIVE ELECTRONS IN
THE NUCLEUS OR AN ATOM BY RUTHERFORD’S
METHOD | [277] |
| APPENDIX G. | BOHR’S THEORETICAL DERIVATION OR THE
VALUE OR THE RYDBERG CONSTANT | [282] |
| APPENDIX H. | A. H. COMPTON’S THEORETICAL DERIVATION
OF THE CHANGE IN THE WAVE-LENGTH OR
ETHER-WAVES BECAUSE OR SCATTERING BY FREE
ELECTRON | [284] |
| APPENDIX I. | THE ELEMENTS, THEIR ATOMIC NUMBERS,
ATOMIC WEIGHTS, AND CHEMICAL POSITION | [286] |
| INDEXES. | | [287] |