INDEX. 



805 



Weber, Eduard, i. 196, 519. 



Weber, Ernst Heinrich, i. 196 ; school 

 of, 200 ; law of sensation, ib. ; 

 "science of life," ii. 396; 402; 

 psycho - physical phenomena, 496 ; 

 60*0 ; psycho-physics of vision, 504 ; 

 508; "touch and bodily feeling," 

 509 ; psycho-physics, 517, 519. 



Weber, H., biographical notice of 

 Wilhelm Weber, i. 304. 



Weber, Heinrich, his treatise on algebra, 

 ii. 729, 730. 



Weber, Wilhelm, of Gottingen and 

 Gauss, telegraph, i. 92 ; quoted, 

 171, 172, 196, 199, 211; 'Electro- 

 dynamische Maasbestimnmngen,' 265, 

 303 : 365 ; absolute measurements, 

 309, 323, ii. 117 ; perfected Coulomb's 

 methods, i. 360 ; astronomical view 

 of nature, 366 ; electrical researches 

 of, 367, 368, 369 ; quoted, 370, 373 ; 

 measurements of, 371, ii. 149 ; im- 

 portance of his labours, i. 384 ; law 

 of, ii, 67 ; 76 ; electro - magnetic 

 measurements, 73 ; 79 ; statical and 

 current electricity, 84 ; theory of, 87 ; 

 researches, 92 ; 97 ; electric measure- 

 ments, 143 ; electrical phenomena, 

 146 ; influences Helmholtz, 150 ; 

 theory of electro-dynamic phenomena, 

 151 ; electrical theory of, 153 ; atomic 

 view of nature, 188 ; Helmholtz 

 quoted, 189; 191, 192; electric 

 particles, 197. 



Webster, Daniel, the term " statist," ii. 

 555. 



Webster, Thos., palaiontological work 

 of, i. 139. 



Wegele, 'Gesch. d. deutschen Historio- 



graphie,' i. 206, ii. 555. 

 Weidmann, editions of the ancient 



classics, i. 167. 

 Weierstrass, ii. 630 ; Poincare on, 638, 

 703 ; and Lagrange, 693 ; his theory 

 of functions, 694 ; his pure analysis, 

 702 ; genesis of his ideas, 703 ; 

 Lampe on, ih. ; on non-differentiable 

 functions, 705 ; 706 ; aud Riemann 

 compared, 707 ; on Riemann, 708 ; 

 his letter to Schwarz, ih. ; proves 

 Gauss's statements, 726 ; 733. 

 Weight and mass, i. 336. 

 Weis, Samuel Christian, mentioned by 



Verdet, ii. 41. 

 Weismann, A., ' Essays upon Heredity,' 

 ii. 372 ; idio plasma theory, 448, 611 ; 

 on heredity, 450 ; on pangenesis, 455 ; 

 theory of evolution, ih. ; "On the 

 Duration of life," 457; 'Essays on 



Descent and Heredity,' 459 ; versus 

 Lamarck, 460. 

 Weissbach, influenced by Poncelet, ii. 

 101. ' 



Weisse, Chr. H., influence on Lotze, ii. 

 500 ; 508. 



Weld, ' History of the Royal Society,' i. 

 90, 127, 227, 228, 2.S3 ; quoted on the 

 publication of the 'Principia,' 98. 



Weldon, W. F. R., on crabs, ii. 621 ; 

 on Pearson's methods, 623. 



Wells, 'Essay on Dew,' i. 230 ; 'Two 

 Essays upon Dew and Single Vision,' 

 ii. 334 ; 347. 



Werner, A. G., Freiberg Mining Aca- 

 demy, i. 17 ; school of geology of, 

 116 ; Cuvier on, 118 ; 155 ; connection 

 of, with modern science, 175 ; scien- 

 tific strife with Hutton, 283j 290; 

 study of fossil remains, ii. 225 ; 266 ; 

 and Hutton, 291 ; describes mineral 

 character of rocks, 294. 



Wernicke, language, ii. 539. 



Wessel, Caspar, on imagiuaries, ii. 

 653. 



Weyrauch, Jacob J., 'KleinereSchriften 

 und Briefe von Robert Mayer,' ii, 97, 

 108. 



Wheatstone and Cooke, first telegraph 

 lines, i. 303. 



Wheatstone, Ohm's law, i. 365 ; 

 quoted. 366 ; stereoscope, ii. 4S6, 

 505; 506. 



Whewell, Wm., on relations of the 

 sciences, i. 37 ; identification of 

 thought with philosophy, 62 ; ' Writ- 

 ings and Correspondence,' 91; crys- 

 tallography, 117; 236 ; quoted, ib.; his 

 influence, "261 ; ' History of the In- 

 ductive Sciences,' 262, 277, 306, 365 ; 

 270 ; Analytical Society, 271 ; ' His- 

 tory of the Inductive Sciences ' 

 quoted, 291, 292, ii. 12; influenced 

 by Kant, i. 307 ; origin and variation 

 of species, 310 ; Avogadro's hypo- 

 thesis not mentioned by him, 428 ; 

 the final establishment ot the undula- 

 tory theory, ii. 26 ; ' Philosophy of the 

 Inductive Sciences,' 205 ; his divisions 

 abandoned, 210 ; quotation from Lin- 

 njeiis, 220; account of vertebral theory, 

 251 ; 268 : the study of functions, 

 269 ; 318 ; Bridgewater Treatise, 325, 

 327 ; Bacon's "method of instances," 

 558. 



Whiston, on reluctance of Cambridge 

 to accept theories of Newton, i. 270. 



White, Gilbert, of Selborne, i. 179; 

 'Natural History of Selborne,' 286; 



