INDEX. 



765 



104 ; indestructibility of force, 111 ; 

 the dynamical theory of heat, 128 ; 

 154 ; agricultural chemistry, 391. 

 Dawson, John, i. '^67. 

 De Bary, emhryological studies of 



plant life, ii. 228. 



De Blaiuville, indebtedness of Cuvier 

 to, i. 130 ; organisation, ii. 236 ; 239 ; 

 'Cuvier et Geoffroy Saint Hilaire,' 

 247, 255 ; ' Ost<?ographie,' 257 ; 266 ; 

 unity of organisation, 267; "com- 

 position et decomposition," 421 ; 

 school of, 431. 

 Decade philosophique ridiculed the 



fall of meteors, i. 327. 

 De Candolle, A. P., botanist, ii. 222 ; 

 theories of symmetry, 223 ; ' Organo- 

 graphie vegetale ' quoted, 230, 236, 

 261, 265, 266; 'Theorie elemeutaire 

 de la Botauique ' quoted, 235 ; mor- 

 phological view, 239 ; quoted, 240, 

 242, 269 ; regularity and symmetry 

 in organic nature, 241 ; symmetry of 

 form, 243 ; appreciation of Goethe's 

 work, quoted, 244 ; influence of, 276. 



Decher (see Clausius), ii. 135. 



Decimal fractions, ii. 645, 731. 



Dedekind, R., biographical notice of 

 Riemann, i. 352 ; and Dirichlet, ii. 

 721; 726, 729; on irrational num- 

 bers, 733, 734, 737. 



De Gerando, i. 149. 



De Haen, i. 208. 



Delage, Yves, history of the study of 

 organic life, ii. 232 ; ' L'He're'dite et 

 les grands problemes de la Biologie,' 

 265, 364, 371, 372, 444, 455, 458, 459 ; 

 'L'fleredite quoted, 271, 298, 348, 

 349, 406, 421, 427, 447, 461 ; structure 

 of protoplasm, 370; school of "or- 

 ganicisrn," 436. 



DC la Hire, ii. 664, 667. 



Delambre, i. 113 ; report of French 

 Institute, 149 ; quoted on statistical 

 methods in France, 153. 



Delambre and Cuvier, scientific reports 

 of, i. 42. 



Delaunay, lunar theory, i. 329. 



De Luc, attacks on Hutton, ii. 291. 



Democritus of Abriera, founder of 

 atomistic theory, i. 385 ; animation 

 of all matter, ii. 369. 



De Moivre, doctrine of chances, ii. 678. 



Derand, geometrical work of, i. 114. 



Derham, Dr Wm., ' Physical Theology,' 

 ii. 564. 



Descartes, constructive system of, i. 

 75 ; and Bacon, 84 ; 123, 137 ; and 

 the philosophy of Kant, 222 ; Order 



of Jesus, 256 ; Harvey's discovery, 

 282 ; discovery of reflex action, 

 292; 'Les Passions de 1'Anie,' 293; 

 311, 313; his philosophy and New- 

 ton's contrasted, 338 ; qtialitates oc- 

 cidtce, 351 ; Snell's experiments in 

 deflection of light rays, 356 ; develop- 

 ment of kinetic view, ii. 6 ; Euler's 

 opposition to, 8 ; theoretical hydro- 

 dynamics, 58 ; older vortex theory 

 and, 62 ; the measure of force, 100 ; 

 influence on German philosophy, 205 ; 

 theory of vortices, 360 ; a founder of 

 modern physiology, 378 ; study of 

 biology, 379, 380 ; idea of life, 409, 

 410; school of "organicisme," 436, 

 455 ; 470, 519, 638, 641, 697. 



Descent, theory of, i. 201. 



Descriptive geometry, ii. 658 et seq. 



Deshayes, history of invertebrates, ii. 

 239 ; Lamarck, 310. 



Destructive spirit in writings of eigh- 

 teenth century, i. 78. 



Destutt de Tracy, ' Ideologic,' i. 83 ; 

 alliance witli medicine, 126 ; 152 ; 

 ideologist, ii. 472. 



Determinants, ii. 682 ; history of, ib. 



Development, study of, ii. 264. 



Deville, Sainte Claire, ii. 162. 



De Wette, theologian, influenced by 

 school of Fries, i. 209, 273. 



Diamagnetism, ii. 74. 



Dickson, J. D. H., quoted by Galtou, 

 ii. 619. 



Diderot on the genesis of new words, i. 

 21 ; his Encyclopedic, 34, 144, 215. 



"Dielectric," ii. 68. 



Differential equations, general theory 

 of, ii. 692; Sophus Lie on, ib. 



"Diffraction," Fresnel's memoir on, ii. 

 25, 27. 



Dilthey, ' Schleiermacher,' i. 279. 



Dingeldey, ' Topologische Studien,' ii. 

 64. 



Dingler's 'Polytechnic Journal,' ii. 

 134. 



Dini, Ulisse, on theory of functions, ii. 

 704. 



Dionis du Sejour, death of, i. 147. 



Dirichlet, Lejeune, lectures on mathe- 

 matical physics, i. 44 ; discourse on 

 Jacobi, 185; quoted, 186, 188, 189; 

 Fourier's series, 241 ; on Steiner, ii. 

 670 ; 680 ; and Fourier, 694 ; his and 

 Thomson's principle, 700, 704, 708 ; 

 721, 726, 728. 



Dissociation, ii. 163. 



Distribution, ii. 566. 



Do'bereiner, i. 190. 



