INDEX. 



Cyclopaedias, i. 273. 



Cyriacus of Aucona, archaeological 

 pioneer, i. 295. 



Czapski, ' Theorie der optischeii Instru- 

 mente nach Abbe,' ii. 14, 229. 



Czenuak, language, ii. 538. 



Czuber, Emmanuel, theory of probabili- 

 ties, ii. 568 ; method of least squares, 

 576. 



Dacier, Report on the progress of His- 

 tory and Classical Literature, i. 149. 



Daguerre, photography, ii. 506. 



Dahlmann, "theoretical politician," i. 

 811. 



D'Alembert, contributions to the En- 

 cyclopedie, i. 34, 144 ; his import- 

 ance in French literature, 105 ; 

 theory of probabilities, 120 ; 215, 234, 

 237 ; the cure of smallpox, 284 ; 319 ; 

 mathematical study of vibrations, ii. 

 16; "measure of force," 'Traite de 

 Dynamique,' 100 ; statistics, 571 ; on 

 functions, 694. 



Dallas, ii. 349. 



Dalton, John, ' New System of Chem- 

 ical Philosophy, ' i. 83 ; atomic theory, 

 189, 266, 385, 394, 415-417, 419, 425, 

 426, 428, ii. 180 ; scientific discov- 

 eries of, i. 229 ; not member of any 

 university, 238, 272 ; neglect of, in 

 England, 245 ; arithmetical mind of, 

 246 ; furnished texts for lectures 

 in German universities, 251 ; 265 ; 

 science of meteorology, 286 ; '293, 

 312, 313 ; heat a material substance, 

 433 ; formula; of, 436 ; analogy be- 

 tween crystallographic and atomic 

 laws, 444 ; his atomic theory insuffi- 

 cient, 451 ; atomic theory referred to, 

 ii. 19, 20, 37, 95, 153, 154; colour 

 blindness, 505. 



Dannecker educated with Cuvier, i. 

 133. 



Dante, i. 261. 



Danton, i. 107. 



Darwin, Charles, constructive ideas of, 

 i. 81 ; eminence of writings of, 105 ; 

 179 ; letter from Sir Charles Lyell on 

 British Association, 240 ; theory of 

 descent, 201, ii. 321, 406 ; furnished 

 texts for lectures in German univer- 

 sities, i. 251,310; ' Cirripedia ' mon- 

 ograph, 283; 'Autobiography,' ib. ; 

 nature - lover, 287 ; and Gilbert 

 White, 290; 297, 312 ;. referred to, 

 ii. 136 ; value of his visits to distant 

 countries, 207 ; studies of organic 

 Jife, 209 ; law of descent, 214 ; con- 



ceptions of, 246 ; and Owen, 267 ; 

 theory of paugenesis, 271, 454 : writ- 

 ings of, 301, 306 ; 309 ; on Lamarck, 

 318; 'Origin of Species,' 326, 3'29 ; 

 ' Life and Letters,' 328 ; and Mal- 

 thus, 331 ; ' Origin of Species ' quoted, 

 336; Bates's "Mimetic Butterflies," 

 339 ; and Newton compared, 341 

 et seq. ; "natural selection," 351, 

 354 ; 434, 437 ; hybridisation, 373 ; 

 "final causes," 403; 408; struggle 

 for existence, 418 ; 421 ; environ- 

 ment, 430 ; conflict in nature, 431 ; 

 435, 436, 451 ; quoted, 457 ; and 

 Weismann, 460 ; 467, 470 ; ' Ex- 

 pression of Emotions,' 477 ; 511, 

 514 ; evolution. 530 ; and Herder's 

 evolutionism, 533 ; language, 540 ; 

 587, 607 ; variation in nature, 608 ; 

 on mental phenomena, 609 ; on " pau- 

 genesis," 610 ; 621 ; two novel points 

 of view of, 624. 



Darwiu, Erasmus, anticipated Lam- 

 arck, i. 201 ; 285 ; colour sensations, 

 ii. 482. 



Darwin, Francis, ' Life and Letters of 

 Charles Darwin,' ii. 329. 



Darwiu, G. H., 'the Tides,' ii. 282. 



Darwin, Robert W., colour sensation, 

 ii. 482. 



Darwinism, i. 251, ii. 386 ; and final 

 causes, 411 ; in Germany, 436. 



Daubenton at the College de France, 

 i. 107 ; natural history at the Ecoles 

 normales, 112 ; 113 ; collection of 

 fossil remains, ii. 248. 



Daunou, Academie des Sciences mor- 

 ales et politiques, i. 145 ; 152. 



Davy, Sir Humphry, electro-chemical 

 discoveries of, i. 83, 189, 363 ; scien- 

 tific work of, 229 ; science in Eng- 

 land, 234 ; not member of any uni- 

 versity, 238, 272 ; opposed Dalton 's 

 atomic theory, 245, 246 ; studied in 

 laboratory of Royal Institution, 249, 

 264 ; educated Faraday, 265 ; un- 

 connected with Cambridge mathe- 

 matical school, 266 ; electric action 

 in chemical processes, 36fi ; decom- 

 position of soda and potash, 391, 

 404 ; electro - chemical theory, 405, 

 452 ; salts and acids, 410 ; attitude 

 to Dalton's theory, 417 ; attitude 

 towards the atomic theory, 418 ; 

 428 ; chemical application of elec- 

 tricity, ii. 92 ; electro-chemistry, 93 ; 

 heat and chemical change, 102 ; atti- 

 tude to science that of a medical 

 man, 103 ; vibratory view of heat, 



