268 



INDEX 



Radiant energy, nature of, 

 122; and its medium of 

 transmission, 123, 128. 



Rankine, on energetics, 1 1 ; on 

 physical theories, 12; out- 

 line of abstractive and hy- 

 pothetical methods, 16, 21. 



Relativity, Principle of ; see 

 Einstein. 



Relativity, of motion and posi- 

 tion, 83; Descartes's doc- 

 trine, 83 ; of knowledge, 

 147; of mechanical motions, 

 175; not applicable to radi- 

 ant energy, 175; an aca- 

 demic question, 182; limited 

 to hypothetical cases, 184. 



Remusat, C. de, Vie de Bacon, 



233- . 



Renan, Ernest, science as sym- 

 bol and law, 2, 212; social 

 evolution, 212. 



Roentgen, W. C., discovery of 

 X-rays, 38. 



Rutherford, Sir Ernest, ex- 

 perimental evidence for at- 

 oms, 60; theory of radio- 

 activity, 63. 



Science, as a guide, 2, 58; its 

 limits, 30, 113, 228; cata- 

 logue of, 151; its functions, 

 187 ; its domination of mod- 

 ern thought, 188; its dog- 

 matism, 189; lack of crit- 

 icism, 189, 215; as a meas- 

 ure of civilization, 215; 

 overthrow of Aristotelian, 

 230; its aim to acquire power 

 and not character, 229; and 

 ethics, a modern combina- 

 tion, 234; its ethical bearing, 

 259 ; its true aim, 260. 



Scientific, method, i ; cult, 35 ; 

 and religious polemic, 35 ; 

 skepticism and credulity, 

 193 ; dogmatism, 210 ; eth- 

 ics, feasibility of, 214. 



Scientists, effect of hypoth- 

 esis on, 28; German school 

 of, 206, 207; education of, 

 223. 



Sensations, not criteria of 

 phenomena, 8. 



Sentiment, as the basis of hy- 

 pothesis, 105. 



Space, and matter, 83; our 

 concept of, 148. 



Spencer, Herbert, evolution as 

 a social law, 212, 238. 



Superman, as the contrast to 

 eugenics, 259. 



Symbolism, the end of hy- 

 pothesis, no; of the new 

 mechanics, 206. 



Tennyson, Lord, humanitari- 



anism, 237. 

 Theology and science, 30, 35, 



58, 210. 

 Theory, need at present time, 



3- 



Thomson, Sir J. J., properties 

 of atom, 17; theory of mat- 

 ter, 41, 54, 129; on electricity, 

 109; mass of electron, 136; 

 artificiality of his hypoth- 

 esis, 202. 



Time, our idea of, 149; meas- 

 urement of, 167; a property 

 of space, 168; variability 

 with motion, 171 ; Einstein's 

 idea of, 181. 



Transcendental symbolism of 

 German physicists, 206, 207. 



Treitschke, doctrine of neces- 

 sity, 259. 



Units, of measure, 118. 

 Universe as a machine, 9, 18, 

 72, 185. 



Velocity of light, its signifi- 

 cance in the modern ether, 



179- 



Vortex, Kelvin's theory, 48; 

 Descartes's theory, 87. 



Wilson, C. T. R., mass of the 



electron, 136. 

 Wordsworth, William, human- 



itarianism, 237. 



