by Will Durant
   Derby, England, 52, 54, 111, 579
   De rege (Mariana), 765
   Desaguliers, Jean (1683–1744), 518
   Descartes, René (1596–1650), 100, 369, 464, 554, 584, 766;
   in Encyclopédie, 633, 636–37;
   his mechanistic views, reactions to, 592, 609, 619;
   his philosophy shackled, say atheists, 616, 705;
   rejection of his cosmology, Voltaire’s role in, 246, 369, 375, 544
   Description de l’ empire de la Chine (Du Halde), 504
   Description des arts et métiers (Académie des Sciences), 584
   De sedibus et causis morborum (Morgagni), 586
   Deserted Village, The (Goldsmith), 182
   Desfontaines, Pierre François Guyot (1685–1745), 289, 375, 380, 384, 498, 760, 765
   Desforges-Maillard, Paul (1699–1772), 267
   Desmarets, Père, 284
   Desmoulins, Camille (1760–94), 713
   Desportes, Alexandre François (1661–1743), 25
   despotism, 368;
   Montesquieu’s views on, 351, 352, 355, 358
   despotism, enlightened (benevolent), seen as best hope for social reform, 100, 505, 665, 688, 776
   Despotisme de la Chine, Le (Quesnay), 505
   Destouches, Louis Camus, Chevalier (1668–1726), father of d’Alembert, 23, 515
   Destouches (Néricault), Philippe (1680–1754), playwright, 283
   determinism, 356, 445, 621, 714;
   of Diderot, 654, 675;
   of d’Holbach, 702–3, 756;
   of Hume, 140;
   Laplace’s exposition of, 547–48;
   Wolff’s, 401–2; see also free will
   Dettingen, Bavaria, battle of (1743), 94, 113, 240, 338, 455, 618
   “Dettingen Te Deum” (Handel), 241
   De Veritate (Herbert of Cherbury), 120
   Devin du village, Le (Rousseau), 322
   Devizes, Wiltshire, England, 136
   Devonshire, William Cavendish, 3d Duke of (d. 1755), 239
   Devonshire House, London, 215
   d’Holbach, Baron, see Holbach
   Diable boiteux, Le (Lesage), 29
   Diablo cojuelo, El (Vélez de Guevara), 28
   Dialogues concerning Natural Religion (Hume), 150–52, 160
   Dialogues of the Dead (Lucan), 161
   Diatribe of Dr. Akakia (Voltaire), 467–69
   Dickens, Charles (1812–70), 198, 199, 205
   Dictionary (French Academy), 323
   Dictionary (Johnson), 82, 87, 181, 292, 635
   Dictionnaire antiphilosophique, Le (Chandon), 756
   Dictionnaire des athées (Maréchal), 780
   Dictionnaire de Trévoux, Le, 759
   Dictionnaire historique et critique, Le (Bayle), 119, 499, 609, 624
   Dictionnaire philosophique, Le (Voltaire), 357–58, 497, 505, 744, 767;
   burned, 734, 742;
   “David,” 731*;
   “Dieu,” 711–13, 752;
   and La Barre case, 734, 735;
   “Patrie,” 779;
   Portatif edition, 741–42, 743;
   on superstition, 738;
   “Theism,” 717;
   “War,” 779
   Diderot, Antoinette Champion (b. 1710), 623–24, 626, 630–631, 632, 675, 676, 677
   Diderot, Denis (1713–84), 156, 283, 345, 558, 576, 605, 617, 623–79, 779
   EARLY LIFE (1713–49): birth, 623;
   education and studies, 498, 531, 623, 625;
   marriage, 623–24;
   frequents cafés and salons, 294, 301, 582, 624, 632;
   interests and early works (1746–49), 624–30;
   imprisoned at Vincennes, 630–32, 634;
   beginning of Grimm-Diderot-Rousseau friendship, 632–33
   THE ENCYCLOPEDIST: 262, 369, 499, 611, 634–49, 669, 678, 693, 756;
   his preparatory work, 625, 631, 634;
   writes prospectus, 633, 634–45;
   involved in Prades affair, work banned (1752), 638–40;
   ban lifted, 279, 639;
   “Geneva” crisis, second ban (1758–59), 641–42, 670, 719–20;
   helped by d’Holbach, 643, 697;
   completes publication, 643–44;
   articles written by him, 640–41, 644–47;
   his role evaluated, 648–49
   LATER LIFE AND WORKS: appearance and character, 673–75;
   as art and book critic, 309, 311–14
   passim, 316, 319, 522, 640, 656–57, 665, 666–68, 674, 677–78;
   battles with antiphilosophes, 670, 761, 762, 764;
   and Catherine the Great, 644, 646, 665, 675, 679, 774;
   his conversation, 665, 678, 695–96;
   and his daughter, 665, 676–78;
   his dialogues, 626, 650, 652–55, 652–55, 669–70, 672;
   and the drama of sentiment, 184, 335, 625, 665, 668–72, 678–79, 752;
   and Grimm, 313, 657, 658, 666, 667, 671, 673–78
   passim, 693;
   and Helvétius, 642, 680, 681, 689, 690;
   and d’Holbach, 611, 665, 678, 680, 695–96, 697, 699–700, 704, 710;
   and Hume, 159, 160;
   and the Jesuits, 623, 627, 638–39, 644, 648, 766, 767;
   and music, 295, 298, 660, 672;
   his novels, 376, 626–27, 657–59, 669, 672;
   on physicians, 599, 600;
   and Raynal, 693, 694;
   and Réaumur, 577–78, 625, 628;
   and Richardson, 192–93, 334, 658, 669, 674;
   on his robe de chambre, 677;
   his Rousseauan qualities and view of “feeling,” 607, 625, 658, 664, 668, 674, 675–76;
   Rousseau’s admiration for, 674, 679;
   his projected Russian journey, 675, 677–78, 679;
   on the theater, 326, 633, 640, 671–72;
   his triumph, 784;
   and Voltaire, 326, 650, 672, 674, 675, 697, 719–20, 735, 736, 738, 740, 752, 753;
   on women, 302
   PHILOSOPHICAL INTERESTS AND VIEWS: 624–25;
   agnosticism, 359, 628–29, 655–56;
   atheism, 337, 625, 626, 629*, 630, 656, 657, 782;
   his crusade against Christianity, 337, 572, 611, 626, 638–40, 656–58, 692;
   deism, 619, 625, 626, 655;
   on education, 609, 774;
   ethics, 598, 625, 656, 662–65, 776;
   evolution, 578, 626, 629, 651–52, 655, 755;
   materialism, 369, 588, 622, 625, 645, 651–53;
   pantheism, 626, 651–52;
   political and economic ideas, 646–47, 665–66, 752;
   psychology, 509, 597, 627–29, 633
   Diderot, Didier (d. 1759), father of the philosophe, 623, 624, 662, 671, 675, 677;
   his letter to Diderot in prison, 631–32
   Diderot, Marie Angélique, see Vandeul, Mme. de
   Dientzenhofer, Christoph (1655–1722), 432
   Dientzenhofer, Johann (1665–1726), 406
   Dientzenhofer, Kilian Ignaz (1680–1751), 432
   digestion, 589
   Dijon, 296, 298, 310, 471, 569, 623, 781
   Dijon, Academy of, 498, 569
   Dijon, Parlement of, 569, 735, 771
   Dillon, Arthur Richard (1721–1806), Archbishop of Narbonne, 254
   Diogenes (412?–323 B.C.), 320
   Dionysius II, tyrant of Syracuse (fl. 367 B.C.), 448
   Dioscorides, Pedanius (fl. C. A.D. 50), 599
   Directorium Inquisitorium (Eymerico), 693
   Directory (France, 1795–99), 713
   Discorsi (Machiavelli), 359*
   Discourse against Mohammedanism (Saint-Pierre), 335
   Discours en vers sur l’homme (voltaire), see discours sur l’homme
   Discourse on the Arts and Sciences (Rousseau), 378, 664
   Discourse on the Origin of Inequality (Rousseau), 664
   “Discours sur la poésie dramatique” (Diderot), 670
   Discours sur le bonheur (La Mettrie), 621
   Discours sur le style (Buffon), 573–75
   Discours
 sur l’histoire universelle (Bossuet), 345, 346, 484, 501, 504
   Discours sur l’homme (Voltaire), 177, 246, 376
   Discovery, 559–60
   disease, 589–92;
   epidemics of, 590, 595;
   prevention and treatment of, 591–602
   Disquisitions relating to Matter and Spirit (Priestley), 528
   Disraeli, Benjamin (1804–81), 101
   Dissenters, 77, 117, 118–19, 129, 526, 528;
   in America, 131;
   in Ireland, 105;
   political orientation of, 90, 91;
   restrictions against, 62–63, 396, 495
   Dissertation upon Parties, A (Bolingbroke), 99
   Divine Legation of Moses, The (Warburton), 124–25
   divine right of kings, 90, 100, 646
   divorce, 65, 290, 343, 675
   Doctrina Numorum Veterum (Eckhel), 500
   Doctrine of Philosophical Necessity Illustrated, The (Priestley), 528
   Dodington, George Bubb (1691–1762), 246
   Dodsley, Robert (1703–64), 182
   Dodwell, Henry (d. 1784), 127
   Dollond, John (1706–61), 537
   Dominicans, 343
   Don Juan (Byron), 559
   Don Juan (Molière), 670
   Donne, John (1573–1631), 176
   Donner, Georg Raphael (1693–1741), 433–34
   Don Quixote (Cervantes), 28, 30, 202, 305
   dons Gratuits (free donations), 254–55, 270, 608, 642, 699
   Douai, Parlement of, 771
   Douglas (Home), 184–85
   Draconis, 540
   dragonnades, 465, 505, 605
   “Drapier” letters (Swift), 104–5
   Dream of d’Alembert, The, see Rêve d’Alembert, Le
   Dresden, 467;
   architecture and sculpture, 399, 405, 406–7;
   court at, 403, 420, 426;
   Frederick marches troops through (1744), 455;
   music, opera in, 399, 408, 410, 411, 414, 417, 420;
   porcelain of, 281, 282, 306, 404;
   Prussian capture of (1745), 457;
   ruined by bombardment (1760), 410
   Dresden, Peace of (Prussia-Austria, 1745), 278, 457, 462
   Drese, Johann (fl. 1708), 414
   dress, 75–76, 81, 292–93, 476, 600
   drugs, 593, 597, 599–600
   Drury Lane Théâtre, London, 183, 193, 230
   Dryden, John (1631–1700), 165, 171, 236, 238, 670
   Du Barry, Jeanne Bécu, Comtesse (1743–93), 735, 744
   Dublin, 171, 230, 239–40, 590
   Dublin Society, 106
   Dubois, Guillaume (1656–1723), Cardinal, Archbishop of Cambrai, 6–7, 17, 19, 23, 30, 31–33, 254
   Du Bouchet, Élisabeth, 82
   Du Cange, Charles du Fresne, Sieur (1610–88), scholar, 487
   Du Châtelet, Marquis (fl. 1749), governor of Vincennes, 630, 631
   Du Châtelet-Lomont, Gabrielle Émilie Le Tonnelier de Breteuil, Marquise (1706–49), 301, 302, 365–66, 401, 483, 484;
   appearance and character, 366, 373, 374;
   marriage, 365;
   and Maupertuis, 365, 374, 514;
   and Richelieu, 365, 367, 391;
   scientific interests, 23, 366, 373, 374–75, 390, 508, 544;
   meets Voltaire, 365–66;
   to Montjeu with him, 367;
   their idyl at Cirey (1734–39), 211, 372–78, 384, 444, 464, 466, 716;
   sojourns in Brussels and Paris (1739–44), 378–82, 448, 449, 455;
   Voltaire’s interest waning, 382–83;
   at Paris and Versailles (1744–47), 383, 384, 391;
   at Sceaux, 386;
   at Lunéville, 388–89, 390–91;
   and Saint-Lambert, 180, 366, 389–91;
   intercedes with kinsman for Diderot, 631;
   death, 390–91, 631
   Du Châtelet-Lomont, Marquis Florent Claude (1695–1766), 365, 372, 373, 378, 389–91
   passim, 393
   Duclos, Charles Pinot (1705–72), 19, 298, 324, 336–38, 607;
   on Dubois, 6–7, 31;
   and Encyclopédie, 640, 642;
   in French Academy, 283, 323, 337, 498;
   on “little atheists,” 338;
   at the salons, 280, 300, 680
   Du Deffand, Marie de Vichy-Chamrond, Marquise (1697–1780), 19, 256, 300–302, 780;
   on Mme. du Châtelet, 302, 366, 374;
   on Helvétius, 301–2, 690;
   and Montesquieu, 301, 344, 357;
   salon of, 301, 344, 781;
   Voltaire correspondence with, 247, 302, 671
   Dudley, Dud (1599–1684), 50
   dueling, 41, 70, 80, 103, 289
   Du Fay, Charles François de Cisternay (1698–1739), 518–19
   Dufresny, Charles Rivière (1648–1724), 341
   Du Halde, Jean Baptiste (1674–1743), 504, 505
   Du Hausset, Mme., 284
   Dumas, Alexandre, fils (1824–95), 330, 335
   Dumbarton, Scotland, 200
   Dunciad, The (Pope), 169, 171–72, 176, 240
   Duncombe, Mr., art patron, 220
   Dunkirk, France, 92, 109
   Dunoyer, Olympe (fl. 1720), 5
   Du Pin, Mme., 84
   Dupleix, Marquis Joseph François (1697–1763), 264–65
   Dupré de Saint-Maur, Mme. (fl. 1749), 628, 630
   Dupuy, memoirist (fl. 1717), 21
   Durand, Laurent (fl. 1748), 627, 628, 634
   Durham, England, 117, 206
   Dürnstein Abbey, Austria, 432–33
   Dutch East India Company, 562, 563
   duties: export, 98, 104, 279;
   import, see tariffs, protective;
   internal, 13, 247, 264, 279
   dynamics, 515, 537
   East Africa, 560
   Eastbury Manor, 246
   Easter Island, 559
   East India Company, English, 55, 56, 59, 113, 264
   East Indies, 694
   East Prussia, 437
   Ebenhecht, Georg (d. 1757), 405
   Eberhard Ludwig, Duke of Württemberg (b.1677-d.1733), 398
   Eberlein, German artist, 404
   Ebrach, 404, 405
   ecclesiastical courts, 72, 268
   Ecclesiastical News (Jansenist periodical), 356
   Eckermann, Johann Peter (1792–1854), 784
   Eckhel, Joseph Hilarius (1737–98), 500
   École Militaire, Mézières, 513
   École Militaire, Paris, 285, 307, 546
   École Normale, Paris, 512, 514
   École Polytechnique, Paris, 512, 514
   economics: in Encyclopédie, 641, 647;
   Helvétius’ views on, 688–89;
   d’Holbach’s views on, 707–8;
   Hume’s contributions to, 155–56
   Écossaise, L’ (Voltaire), 765
   “Écrasez l’infâme!” (Voltaire slogan), see infame, L’
   Ecuador, 552
   Écumoire, L’ (Crébillon fils), 331
   Edesheim, 695
   Edict of Nantes, see Nantes, Edict of
   Edinburgh, 92, 108, 110–11, 556
   Edinburgh, University of, 108, 140, 147, 557, 579;
   Faculty of Advocates, 156
   Edinburgh Review, The, 162
   education, philosophes* theories of: 775–76, 785;
   Diderot’s, 690;
   Helvétius’, 583, 682, 683–84, 688, 690–91, 775;
   d’Holbach’s, 706, 707;
   Rousseau’s, 583, 775
   education and schools, 493, 494, 786
   IN FRANCE: 19, 33, 252, 286–87, 324, 512, 608, 773–76;
   under Jesuits, 256, 498, 765–67, 769–70;
   Lavoisier’s plan for, 536;
   military, 271, 285;
   under National Convention, 583;
   proposals and campaign for secularization of, 684–85, 691, 697, 738, 766, 770–71, 773–75;
   reorganized, 775
   IN OTHER COUNTRIES: England, 62–63, 71, 118;
   German states, 399–400,
 407, 411, 415, 438, 772;
   Ireland, 105, 106;
   Scotland, 107, 108;
   Switzerland, 476, 480, 481;
   United States, 691
   Edward VI, King of England (r. 1547–53), 54
   Effner, Josef (1687–1745), 398–99, 406
   Eger, Bohemia, 272, 455
   Egmont, Septimanie de Richelieu, Comtesse d’ (1740–73), 289, 293
   egoism, universal, theory of, 149, 301, 459, 687–88, 691, 706, 707, 777;
   disputed, 690;
   satirized, 762
   Egypt, 501, 506, 549
   Eisenach, Saxe-Weimar, 411, 412–13
   Elbe River, 399, 437
   Eleatics, 645
   Elective Attractions (Bergman), 524
   electricity, 51, 514, 517, 518–23, 526
   “Elegy Written in a Country Churchyard” (Gray), 182, 183
   Elementa Physiologiae Corporis humani (Haller), 477, 588
   Éléments de la philosophie de Newton (Voltaire), 375, 378
   Éléments de musique théorique et pratique (d’Alembert), 516
   Éléments de physiologie (Diderot), 655
   Éleuthéromanes, Les (Diderot), 666*
   Élie de Beaumont, Jean Baptiste Jacques (1732–86), 730
   Elisabeth Christina of Brunswick-Bevern (1715–97), Queen of Frederick II of Prussia, 442, 460, 461
   Elizabeth I, Queen of England (r. 1558–1603), 40, 52, 65, 224, 518
   Elizabethan era, 75, 188, 224, 262
   Elizabeth Petrovna, Empress of Russia (r. 1741–62), 510
   Éloge de Richardson (Diderot), 192–93, 669
   “Eloïsa to Abelard” (Pope), 167–68
   Émile (Rousseau), 324, 589, 755, 766;
   burned, 737, 772
   enclosure of common lands, 46
   Encyclopaedia (Alsted), 499
   Encyclopaedia Britannica, 499–500
   Encyclopédie, L’, 23, 184, 633–49, 693;
   antecedents and history of, 499, 625, 630, 631, 633–44, 669, 670, 678, 737, 783;
   and anti-Christianity campaign, 21, 86, 116, 486, 636–42
   passim, 644–46, 648, 649;
   “Athée” article, 644, 758;
   Bacon’s influence on, 369, 370, 636;
   banning of, 639, 642, 682, 718;
   “Certitude,” 638;
   “Christianity” (Diderot), 644, 648;
   “Collège,” 766;
   “Discours préliminaire,” 635–37, 719;
   economic ideas in, 647;
   “Encyclopedia” article, 640–41, 646;
   government, articles on, 641, 646–47;
   and Jesuits’ fall, 644, 771;
   and Locke, 633, 636, 637;
   machines and technology, articles on, 262, 647–48;
   Malesherbes and, 348, 611, 638, 639, 641, 643;
   music articles, 297–98, 642;
   Mme. de Pompadour and, 279, 321, 639, 644*;
   “Prètre,” 644–45, 697;
   reviews and criticism of, 637–41