| Introduction | iii |
| Prefaces | ix |
Chapter I. | Introductory | |
1. | The Need of the Present | 1 |
2. | Science and Citizenship | 6 |
3. | The First Claim of Modern Science | 8 |
4. | Essentials of Good Science | 9 |
5. | The Scope of Science | 12 |
6. | Science and Metaphysics | 14 |
7. | The Ignorance of Science | 19 |
8. | The Wide Domain of Science | 24 |
9. | The Second Claim of Science | 25 |
10. | The Third Claim of Science | 29 |
11. | Science and the Imagination | 30 |
12. | The Method of Science Illustrated | 32 |
13. | Science and the Aesthetic Judgment | 34 |
14. | The Fourth Claim of Science | 36 |
Chapter II. | The Facts of Science | |
1. | The Reality of Things | 39 |
2. | Sense-Impressions and Consciousness | 42 |
3. | The Brain as a Central Telephone Exchange | 44 |
4. | The Nature of Thought | 46 |
5. | Other-Consciousness as an Eject | 48 |
6. | Attitude of Science towards Ejects | 51 |
7. | The Scientific Validity of a Conception | 53 |
8. | The Scientific Validity of an Inference | 55 |
9. | The Limits to Other-Consciousness | 57 |
10. | The Canons of Legitimate Inference | 59 |
11. | The External Universe | 60 |
12. | Outside and Inside Myself | 63 |
13. | Sensations as the Ultimate Source of the Materials of Knowledge | 66 |
14. | Shadow and Reality | 69 |
15. | Individuality | 71 |
16. | The Futility of "Things-in-Themselves" | 72 |
17. | The Term Knowledge is Meaningless if applied to Unthinkable Things | 74 |
Chapter III. | The Scientific Law | |
1. | Resume and Foreword | 77 |
2. | Of the Word Law and its Meanings | 79 |
3. | Natural Law relative to Man | 82 |
4. | Man as the Maker of Natural Law | 85 |
5. | The Two Senses of the Words "Natural Law" | 87 |
6. | Confusion between the Two Senses of Natural Law | 88 |
7. | The Reason behind Nature | 90 |
8. | True Relation of Civil and Natural Law | 93 |
9. | Physical and Metaphysical Supersensuousness | 95 |
10. | Progress in the Formulating of Natural Law | 96 |
11. | The Universality of Scientific Law | 100 |
12. | The Routine of Perceptions is possibly a Product of the Perceptive Faculty | 101 |
13. | The Mind as a Sorting-Machine | 106 |
14. | Science, Natural Theology, and Metaphysics | 107 |
15. | Conclusions | 109 |
Chapter IV. | Cause and Effect--Probability | |
1. | Mechanism | 113 |
2. | Force as a Cause | 116 |
3. | Will as a Cause | 118 |
4. | Secondary Causes involve no Enforcement | 120 |
5. | Is Will a First Cause? | 122 |
6. | Will as a Secondary Cause | 123 |
7. | First Causes have no Existence for Science | 127 |
8. | Cause and Effect as the Routine of Experience | 128 |
9. | Width of the Term Cause | 131 |
10. | The Universe of Sense-Impressions as a Universe of Motions | 132 |
11. | Necessity belongs to the World of Conceptions, not to that of Perceptions | 134 |
12. | Routine in Perception is a necessary Condition of Knowledge | 136 |
13. | Probable and Provable | 139 |
14. | Probability as to Breaches in the Routine of Perceptions | 142 |
15. | The Basis of Laplace's Theory lies in an Experience as to Ignorance | 143 |
16. | Nature of Laplace's Investigation | 147 |
17. | The Permanency of Routine for the Future | 148 |
Chapter V. | Contingency and Correlation--the Insufficiency of Causation | |
1. | The Routine of Perceptions is Relative rather than Absolute | 152 |
2. | The Ultimate Elements of the Inorganic as of the Organic Universe may be Individual and not Same | 155 |
3. | The Category of Association, as replacing Causation | 156 |
4. | Symbolic Measure of the Intensity of Association or Contingency | 160 |
5. | The Universe as governed by Causation and as governed by Contingency | 165 |
6. | Classification of A and B by Measurement. Mathematical Function | 167 |
7. | On the Multiplicity of "Causes" | 171 |
8. | The Universe as a Complex of Contingent, not Causally Linked Phenomena | 173 |
9. | The Measure of Correlation and its Relation to Contingency | 174 |
Chapter VI. | Space and Time | |
1. | Space as a Mode of Perception | 179 |
2. | The Infinite Bigness of Space | 184 |
3. | The Infinite Divisibility of Space | 186 |
4. | The Space of Memory and Thought | 189 |
5. | Conceptions and Perceptions | 191 |
6. | Sameness and Continuity | 194 |
7. | Conceptual Space. Geometrical Boundaries | 197 |
8. | Surfaces as Boundaries | 199 |
9. | Conceptual Discontinuity of Bodies. The Atom | 201 |
10. | Conceptual Continuity. Ether | 205 |
11. | On the General Nature of Scientific Conceptions | 206 |
12. | Time as a Mode of Perception | 208 |
13. | Conceptual Time and its Measurement | 213 |
14. | Concluding Remarks on Space and Time | 217 |
Chapter VII. | The Geometry of Motion | |
1. | Motion as the Mixed Mode of Perception | 220 |
2. | Conceptual Analysis of a Case of Perceptual Motion. Point-Motion | 222 |
3. | Rigid Bodies as Geometrical Ideals | 225 |
4. | On Change of Aspect, or Rotation | 227 |
5. | On Change of Form, or Strain | 229 |
6. | Factors of Conceptual Motion | 232 |
7. | Point-Motion. Relative Character of Position and Motion | 233 |
8. | Position. The Map of the Path | 236 |
9. | The Time-Chart | 239 |
10. | Steepness and Slope | 242 |
11. | Speed as a Slope. Velocity | 244 |
12. | The Velocity Diagram or Hodograph. Acceleration | 246 |
13. | Acceleration as a Spurt and a Shunt | 249 |
14. | Curvature | 251 |
15. | The Relation between Curvature and Normal Acceleration | 255 |
16. | Fundamental Propositions in the Geometry of Motion | 258 |
17. | The Relativity of Motion. Its Synthesis from Simple Components | 260 |
Chapter VIII. | Matter | |
1. | "All things move"--but only in Conception | 266 |
2. | The Three Problems | 269 |
3. | How the Physicists define Matter | 271 |
4. | Does Matter occupy Space? | 275 |
5. | The "Common-sense" View of Matter as Impenetrable and Hard | 279 |
6. | Individuality does not denote Sameness in Substratum | 281 |
7. | Hardness not Characteristic of Matter | 285 |
8. | Matter as non-Matter in Motion | 286 |
9. | The Ether as "Perfect Fluid" and "Perfect Jelly" | 289 |
10. | The Vortex-Ring Atom and the Ether-Squirt Atom | 292 |
11. | A Material Loophole into the Supersensuous | 294 |
12. | The Difficulties of a Perceptual Ether | 297 |
13. | Why do Bodies move? | 299 |
Chapter IX. | The Laws of Motion | |
1. | Corpuscles and their Structure | 305 |
2. | The Limits to Mechanism | 309 |
3. | The First Law of Motion | 311 |
4. | The Second Law of Motion, or the Principle of Inertia | 313 |
5. | The Third Law of Motion. Mutual Acceleration is determined by Relative Position | 317 |
6. | Velocity as an Epitome of Past History. Mechanism and Materialism | 322 |
7. | The Fourth Law of Motion | 326 |
8. | The Scientific Conception of Mass | 329 |
9. | The Fifth Law of Motion. The Definition of Force | 330 |
10. | Equality of Masses tested by Weighing | 333 |
11. | How far does the Mechanism of the Fourth and Fifth Laws of Motion extend? | 337 |
12. | Density as the Basis of the Kinetic Scale | 339 |
13. | The Influence of Aspect on the Corpuscular Dance | 343 |
14. | The Hypothesis of Modified Action and the Synthesis of Motion | 344 |
15. | Criticism of the Newtonian Laws of Motion | 348 |
Chapter X. | Modern Physical Ideas | |
1. | The Present Crisis in Physical Science and its Sources | 355 |
2. | The Origin of the Atomic View of Electricity | 358 |
3. | On the Electro-magnetic Constitution of the Atom | 361 |
4. | Electro-magnetic Mass | 364 |
5. | A Mechanical Ether Irrational | 367 |
6. | On Current Definitions of Electric Charge and Intensity at a Point | 370 |
7. | The Possibility of a Logical Definition of the Fundamental Quantities of the Electron Theory | 371 |
8. | On Fluid or Space Distribution of Electricity | 374 |
9. | On Motion Relative to the Ether in Relation to Experience | 377 |
10. | Theory of Relativity | 379 |
11. | Electro-magnetic Inertia according to the Theory of Relativity | 383 |
12. | The Present Value of Newtonian Dynamics | 385 |
| Appendix | |
Note I | On the Principle of Inertia and "Absolute Rotation" | 389 |
Note II | On Newton's Third Law of Motion | 392 |
Note III | William of Occam's Razor | 392 |
Note IV | A. R. Wallace on Matter | 393 |
Note V | On the Reversibility of Natural Processes | 394 |