INDEX. 



795 



Repsold, measurements of, i. 322. 



Retrospect and prospect, ii. 741 et seq. 



Reuchlin, i. 163. 



Revett. See Stuart. 



Revolution, French, added the modern 

 practical popularisation of science, i. 

 145. 



Revolutionary theories not practical, i. 

 79. 



Reye, 'Geometric der Lage,' ii. 669. 



Ribbeck, 'Friedr. Wilh. Ritschl.,' i. 

 169, 172. 



Ribot, 'Modern German Psychology,' 

 ii. 495 ; ' Psychologic Allemande 

 Contemporaine,' 511 ; 513. 



Richelieu, his "metallic" interest in 

 science, i. 105 ; first statistical 

 bureau, ii. 561. 



Richelot at Konigsberg with Neumann 

 and Bessel, ii. 54. 



Richer, astronomical constants, i. 322 ; 

 pendulum experiments of, 354. 



Richet, Ch. , ' Physiologic des Muscles 

 et des Nerfs,' i. 293, ii. 519. 



Richter, J. B., chemical equivalents, i. 

 189 ; 313 ; theory of fixed proportions, 

 393 ; 398 ; atomic theory, 416 ; the 

 "equivalent" of an element, 419. 



Richter, W., theory of "Panspermia," 

 ii. 369. 



Rie,cke, memoir of Pliicker, ii. 75 ; 

 Eloge of Weber, 197. 



Riemann, B., i. 45; 'Hypothesen der 

 Geometric,' 200 ; Fourier's series, 

 241 ; celebrated dissertation of, 243 ; 

 views on ideas of space, 352 ; 

 ' Werke,' ii. 63 ; researches into 

 electrical phenomena, 67 ; 254, 635 ; 

 and Cauchy, 693, 699; on Abelian 

 functions, 699; his work, 700; his 

 surface, 701 ; 704, 706 ; and Weier- 

 strass compared, 707 ; on hypotheses 

 of geometry, 710 ; 717, 718. 



Riess, frictional electricity, i. 205 ; 

 statical electricity and the Geissler 

 tubes, ii. 191. 



Rindfleisch, Ed. von, 'Arztliche Phil- 

 osophic,' ii. 379, 437. 



Ritschl, Friedr. Wilh., indebtedness of, 

 to Bentley, i. 169 ; quoted, 172 ; con- 

 ducted philological seminaries, 214 ; 

 language, ii. 540. 



Ritter, Karl, comparative geography, ii. 

 226 ; extension of morphological view, 

 260 ; 300. 



Rbber, construction of the heptagon, ii. 

 722. 



Robertson, Croom, calls Hobbes's the 

 first English system of philosophy, i. 



48 ; 282 ; ' Mind,' ii. 512 ; on MUn- 

 sterberg's work, 522. 



Robertson, David, naturalist, i. 288. 



Roberval, referred to by Voltaire, 

 105 ; taught at the College de France, 

 107. 



Robespierre, i. 107. 



Robin, 'Traite d'Anatomie generate, ' ii. 

 266. 



Robison, John, on Boscovich's theory, 

 i. 358, 359; publisher of Black's 

 lectures, ii. 102. 



" Rochdale Pioneers," ii. 566. 



Rochow, von, educational work of, i. 

 256. 



Rogers, W. G., illustrations of Helm- 

 holtz's theories, ii. 63. 



Rokitansky, Vienna school of medicine, 

 i. 198, 208. 



Roman system of registration, ii. 561. 



Romanes, 'Darwin and after Darwin," 

 ii. 346 ; 436. 



Romanticism, reactionary movement of, 

 i. 82. 



Romberg, medical school of, i. 208. 



Rome de 1'Isle, contributions to crystal 

 lography, i. 117. 118, ii. 241. 



Romer, Glaus, motion of light, ii. 10. 



Romme, Gilbert, quoted, i. 110. 



Rontgen, discovery of X rays, ii. 92. 



Roscher, ' Gesch. d. National-Oekono- 

 mik,' ii. 555 ; statistics, 563. 



Roschlaub influenced by the Natur- 

 philosophie, i. 207. 



Roscoe, Sir H., 'John Dalton,' i. 417. 



Rose, H., i. 174 ; the greatest analyt- 

 ical chemist of the century, 399. 



Rose, H. and G., chemists, i. 188. 



Rosenberger, 'Geschichte derPhysik,'i. 

 308, 359, 433, ii. 8, 11, 178, 506; 

 ' Die moderne Entwickelung der 

 elektrischen Principien,' 90 ; physical 

 nature and "perpetual motion," 124. 



Rosenkranz on the encyclopaedists, i. 34. 



Ross, Sir James, confirms calculations 

 of Gauss as to south magnetic pole, i. 

 331. 



Rothmann, i. 157. 



Rousseau, influence on Herder, i. 50 ; 

 gospel of Nature, 51 ; and the ' ' Auf- 

 klarung " period, 60 ; 107 ; destruc- 

 tive revolutionary work of, 110 ; 

 popularised botanising, 127 ; centre 

 of reaction against school of Voltaire, 

 Buffon,' &c., 145 ; 163 ; influence of, 

 on German thought and literature, 

 212 ; 253, 257 ; valuable side of his 

 ideas developed outside of France, 

 259 ; 285, ii. 415 ; language, 536. 



