INDEX 



547 



Speed, uniform, 219 



variable, 219 



as the slope of the tangent, 219 

 Spencer, Herbert, i, 329 ftn. , 341, 

 364. 367- 379- 380 ftn., 506, 508, 

 510-513. 532 ; essays, 512 ftn. 



his classification, 510-513 



his use of the term "force," 329 ftn. 



Man and the State, 371 



Principles of Biology, 371 



Reasons for Dissenting from the 

 Philosophy of AI. Cointe, 510 ftn. 



The Classification of the Sciences, 



511. 532 

 Spin, 229 



Spiritualism, 23, 190 

 Spurt, 222 

 Steepness, 215-216 

 Step, 207 

 Stirp, 450 

 Stoics, the, 88-92 

 Stokes, Sir G. G. , 264, 266 



Burnett Lectures on Light, 90 ftn., 



353 ftn-. 



Mathematical and Physical Papers, 

 264 ftn. 

 Strain, or change of form, 202-205 

 Stretch, 203 

 Stuart, J., 134 



A Chapter of Science, 112, 135 ftn. 

 Supermateriality, 339-340 

 Supersensuousness, 96 

 Swift, 250 

 Swing-radius, 386 



Tables — • 



abstract science, 518 

 concrete science (inorganic), 523 

 concrete science (organic), 526 

 correlation coefficient in man, 402 

 correlation, of eye-colour, 432, 433, 



434. 435. 436, 443 

 correlation, of fingers, 399 

 correlation, of stature of fathers and 



sons, 455 

 correlation, of stature of husbands 



and wives, 430 

 correlation, of stigmatic bands in 



poppies, 394 

 exclusive inheritance, 495 

 frequency, 408 

 heredity between parents and 



children, 462 

 heredity (collateral), 481 

 heredity (direct), 479 

 human learning, 507 

 influence of selection, 483 

 intensity of inheritance of eye-colour, 



491 

 Nigella capsules, 444 



Tables — 



pedigree stock, 485 



stature of husbands and wives, 426, 



427 

 stature of women, 442 

 stigmatic bands on poppies, 383, 



388, 393-395. 443 

 strerigth of heredity for different 



oi^ans, 458 

 veins in beech leaves, 382, 383, 387 

 Tait, Professor, 259, 274, 296, 324 

 Dynamics of a Particle, 305 ftn. 

 Properties of Matter, 247, 248, 274, 



277 

 Tangent, definition of, 217 

 Telegony, 372, 454, 461, 462 

 Tennyson, 131 

 Tension, 308-310 

 Theory, lunar, 521 

 nebular, 522 

 of description, 517 

 of errors, 516 

 of functions, 516 

 of gases, kinetic, 521 

 of measurement, 516 

 of observation, 517 

 planetary, 521 

 of probability, 516 

 of radiation, 522 

 of statistics, 516 

 of strains, 518 

 of the tides, 521 

 Theosophy, 190 



Thermo-dynamics, second law of, 84 

 Thing-in-itself, 72-73 

 Thomson, Sir W. , 259 ftn., 264 ftn., 

 266, 274, 324, 347 

 Popular Lectures and Addresses, 

 103 ftn., 140, 196, 266 ftn., 277 

 The Six Gateways of Knowledge, 



140 

 vorte.x-atom theory, 266 

 Thomson and Tait, Treatise on 

 Natural Philosophy, 245, 247, 

 274, 321 ftn., 327 

 Thomson, J. A., Evolution of Sex, 



26 ftn. 

 Time-chart, 212-215 

 Time, Newton's definition of con- 

 ceptual, 189 

 Newton's definition of perceptual, 

 189 

 Todhunter, History of the Theory or 

 Probability, 148 ftn. , 151 

 History of Elasticity, 320 

 Tradition, 378 

 Translation, motion of, 198 

 Trendelenburg, 192, 193 ftn. 



Logische Untersuchungen, 193 ftn. 

 Tunzelmann, von, 179 ftn. 



