INDEX. 



775 



from a metaphysical standpoint, 43 ; 

 philosophy of, intiuenced by Herdei-, 

 51 ; ridiculed search for new planets, 

 54 ; on status of philosophy, 60 ; 

 his definition of philosophy, 61 ; re- 

 lation of philosopliy to religion, 73 ; 

 ' PhJinomenologie des Geistes,' 83; 

 spontaneous development of thought, 

 85; 'Geschichte der Philosophie,' 

 145 ; 162 ; speculative tendency of, 

 178 ; philosophy of, 204, ii. 279, 346, 

 500 ; i. 207, 208 ; encyclopajdic lec- 

 tures on philosophy, 214 ; benefac- 

 tions to historical sciences, 215 ; 

 Schelling's scheme of evolution, ii. 

 354 ; 495 ; dialectics, 530 ; 60S, 751. 



Hegelianism, failure of, i. 72. 



Heidenhain, Prof., function of gland- 

 cells, ii. 429. 



Heine, E., ii. 704, 733. 



Helm, Dr Georg, 'Die Lehre von der 

 Energie,' ii. 97, 142, 185, 186; 'Die 

 Energetik nach ihrer gescliichtlichen 

 Entwickelung,' 97, 106, 108-111, 125, 

 127, 133, 138 ; controversies as to 

 priority of discovery in theory of 

 energy, 97, 98 ; influence of Poucelet 

 on practical mechanics, 101 ; heat 

 nnit, 109 ; labours of Horstmann, 

 170; methods of W. Gibbs, 171; 

 criticism of mechanical view, 183 ; 

 188. 



Helmholtz, metaphysical foundations 

 of geometry and dynamics, i. 45 ; 

 'Eeden' quoted, 175; on speculative 

 tendency in science, 179 ; on Goethe 

 as a naturalist, 180 ; ' Vortrage,' 193 ; 

 198, 199 ; doctrine of the conserva- 

 tion of energy, 2')1 ; on the relations 

 of mathematical and experimental 

 science, 205 ; ' Wisseuschaftliche 

 Alihandlungen,' ib. ; 'Vortrage und 

 Reden ' quoted, 209 ; ' Ueber das 

 Deiiken in der Medicin,' 210 ; revival 

 of doctrine of conservation of force, 

 218 ; on Kant, 219 ; 220 ; ' Journal 

 fur Mathematik,' 231 ; Fourier's 

 series, 241 ; "sense perceptions," 243 ; 

 on Young, 244 ; ' Ueber die Erhaltung 

 der Kraft,' 265, 309 ; on Faraday's 

 ideas, 266 ; vortex motion, 313, ii. 

 35, 60 ; on the gravitation theory, i. 

 352 ; 375 ; objection against Weber's 

 law, 376, 377 ; "action at a distance," 

 380 ; on the electro-chemical theory, 

 405 ; investigations of fluid motion, ii. 

 58; articles on acoustics, ib. ; "vor- 

 tex filaments," 61 ; influence of his 

 speculations in England, 62 ; illus- 



trations of his theories, 63; suggested 

 vortex-atom theory, 66 ; ' Faraday 

 Lecture ' quoted, ib. ; adopted views 

 of English scientists, 93 ; independ- 

 ence of Mayer's writings, 97 ; his 

 work theoretical, 99 ; " physical me- 

 chanics," 101 ; scientific services of, 

 106 ; memoirs refused by Poggendorf, 

 107 ; classical character of his in- 

 vestigations into the nature of heat, 

 112; 'Gesammelte Abhandlungen,' 

 113 ; his recognition of the claims of 

 Mayer, 114; 117; and Sadi Carnot, 

 123 ; perpetual motion, 124 ; conser- 

 vation of energy, 125, 127, 130, 142, 

 438; "death" of the universe, 131; 

 mathematical treatment of power and 

 work, 137 ; on tension, 138 ; 141 ; 

 energetics, 148 ; electro - dynamics, 

 149 ; theories of electro-dynamic phen- 

 omena, 152 ; Faraday Lecture, 154 ; 

 dissociation, 163 ; thermal measure- 

 ments, 172; "free energy," 173; 

 chemical equilibrium, 175 ; quoted, 

 182 ; atomic view, 189 ; atom of elec- 

 tricity, 193 ; memoir of, 195 ; ether 

 theory, 196 ; imperfections of tlie eye 

 as an optical instrument, 215 ; micro- 

 scopic work, 229 ; Goethe's theory of 

 colours, 245 ; Kant's theory, 282 ; 

 appreciation of Kant, 284 ; "energy," 

 355 ; physical laws, 356 ; cosmical 

 origin of life, 369 ; on vitalism, 

 388 ; 391 ; 'Physiological Optics,' 397, 

 480, 508; 'Physiological Acoustics,' 

 397 ; nature of living forces, 398 ; 

 403, 421, 467 ; animal magnetism, 

 476; quoted on "specific energies," 

 482 ; optics, 483, 506 ; psycho-physi- 

 cal science, 485; "Timbre," 488; 

 aiTangement of tones, 490 ; and Kant, 

 491 ; psycho - jihysical phenomena, 

 496 ; space perception, 504 ; " Ueber 

 das Sehen des Jlenschen," 506 ; hear- 

 ing and seeing, 512 ; language, 538 ; 

 on liarmonics, 623 ; on foundations 

 of geometry, 710 ; letter to Schering, 

 ih. ; on axioms of geometry, 711 ; 

 and Riemann on geometry, 713. 



Helvetius, ignorance of physiology, ii. 

 471. 



Henle, Jacob, reconstruction of "gen- 

 eral anatomy," i. 195 ; 198 ; anthro- 

 pological lectures of, 215; mechanical 

 views in biology of, 219 ; on demon- 

 stration of Bell's doctrine, 293 ; 

 ' AUgemeine Auatomie,' ii. 401. 



Henrici, ii. 656. 



Henry, Dr, not member of any univer- 



