Diderot, Denis, 11, 17, 30, 88, 125, 128, 130, 131, 138, 143, 163, 165, 168, 170, 191-2, 199, 202; education, 32-3; early life in Paris, 34-6; marriage, 37-8; episode of Mme. Puisieux, 39; writes ‘Essay on Merit and Virtue’ and ‘Philosophical Thoughts,’ 39; birth of his daughter, 40; writes ‘Letter on the Blind,’ 41; prisoner in Vincennes, 42-3; works at Encyclopædia, 43-8; miscellaneous labours, 49-51; episode of Mlle. Volland, 51; visits _salons_, 52-3; visits Grandval, 53-6; produces plays, 56; visits Catherine the Great, 56-8; sees Voltaire, 58-9; illness and death, 60-1; estimate of his work and character, 61 Diderot, Madame (Mlle. Anne Toinette Champion), 36-9, 40-1, 51, 60-1 ‘Dynamics, Treatise on’ (d’Alembert), 10 ‘Elements of Philosophy’ (d’Alembert), 17, 72 Encyclopædia, The, 11-13, 14, 15-17, 43-8, 56, 121, 133, 150, 213 ‘Épinay, Correspondence with Madame d’ (Galiani), 68 Épinay (Madame d’), 52-3, 79-80, 93, 125, 163-7, 172 ‘Eugénie’ (Beaumarchais), 241 ‘Existence’ (Turgot), 133, 213 ‘Fame and Pleasure, Discourses on’ (Vauvenargues), 103 ‘Father of the Family, The’ (Diderot), 56 Fel, Mademoiselle (opera dancer), 150-1, 166 ‘Figaro, The Marriage of’ (Beaumarchais), 252-60 Franklin, Benjamin, 129-30, 204 Frederick the Great, 10, 13-14, 17-18, 88, 144, 156, 158, 167-8, 202 Fréron, Élie (journalist), 88 Frise, or Frisen, Comte de, 153, 155 Galiani, Abbé, 125, 130, 135-6, 144, 148; his characteristics, 62-3; birth and education, 63-4; at the Academy of Naples, 64-5; literary work, 65; religion, 66; posts and pensions, 67-8; appointed Secretary in Paris, 68-9; his reception there, 70-1; his popularity, 71-3; as a conversationalist, 73-4; at the _salons_, 74-80; his wit, 81-2; his work, 82-3; visits London, 83-4; recalled to Naples, 84-6; publishes ‘Dialogues on Corn Trade,’ 86-7; its reception, 87-90; life at Naples, 90-3; friendship with Mme. d’Épinay, 93; illness and death, 94-5; his mission, 95 Galiani, Bernard, 63-4, 92 Galiani, Celestin, 63-4, 67 Garrick, David, 55, 56, 129 ‘Geneva’ (d’Alembert), 15-16, 47 Geoffrin, Madame, 52, 66, 74-5, 127-8 ‘Goezman Memoirs’ (Beaumarchais), 241, 243-6 ‘Good Sense’ (d’Holbach), 147 Graffigny, Madame de, 183-4, 211-12 Grimm, Melchior, 49, 52-3, 58, 71, 79, 88, 125, 130, 144-5; his love affair with Mlle. Fel, 150-1; birth and early life, 151-2; character, 152-4; life in Paris, 154-5; his ‘Literary Correspondence,’ 156-63; his attachment to Mme. d’Épinay, 163-6; visits Geneva, 166-7; and Frederick the Great, 167-8; and England, 168; and the Russian Court, 168-70; corresponds with Catherine the Great, 171; his conduct in the Revolution, 172-3; last years and death, 174-5; his mission, 175 ‘Guilty Mother, The’ (Beaumarchais), 264, 266 ‘Happiness’ (Helvétius), 180, 204