Mineral Black, 407. " Blue, 207. " Brown, 342. " colours, darkening of, 284. " Gray, 375. " Green, 288. " Green, German, 288. " Kermes, 159. " Orange, 258. " Pitch, 337. " Purple, 290. " Turbith, 123. " Yellow, 106, 116, 121. Minérale, Jaune, 94. " Laque, 258. Miniature painter, a, 401. Minium, 151, 153. Mitis Green, 271. Mixed Colours:-- " Black, 402. " Brown, 346. " Citrine, 314. " Gray, 377. " Green, 277. " Grey, 384. " Marrone, 367. " Olive, 328. " Orange, 249. " Purple, 290. " Russet, 322. Mixed tints, on, 249-252, 262. Mixture, a, 199. " of Bitumen and Mummy, 348. " of coloured rays, 384. " of material colours, 384. " unnecessary, 35. Modan or Morat White, 80. Modern pigments, 41-45. " detractors of, 43-45. " inferior, 41. " superior, 42. Molybdenum Green, 289. Monicon, 257. Montabert, De, 405. Montbeillard, Roman pavement at, 218. Montpellier Yellow, 121. Mountain Blue, 228. " Green, 274. Mountains, 254. Mummy, 347. " Brown, 347. " and Bitumen, mixed, 348. Murexide, 169. Musée Minéralogique, of Paris, 219. Mutrie, Miss, 143. " Yellow, 92. N. Naphthaline, 162. Naples Yellow, modern, 104. " old, 103. Napoleon, Emperor, 176. Native Bitumen, 338. " Green, 267. " Prussian Blue, 207, 226. " Ultramarine, 216. Natural Ultramarine, 216. Nature, colour in, 311. " gradation in, 326. " palette of, 185. " study of, 24. Negative colours, 28. Nepos Cornelius, 295. Neutral colours, 27. " Orange, Penley's, 253. " Tint, 377. Neutrality and colour, 375, 376. Neutrals, colour as applied to the, 62. New Blue, 216. " pigments, 41-45. Nickel Brown, 358. Nineveh, 6, 218. Nottingham White, 73. O. Objectionable pigments, substitutes for, 96, 104, 114. Ochre, Black, 404 " Blue, 226. " Brown, 108. " Browns, 358. " Burnt Roman, 255. " Chrome, 267. " Green, 287. " Indian, 148. " Orange, 255. " Oxford, 109. " Purple, 290. " Red, 147. " Roman, 107. " Scarlet, 149. " Spanish, 255. " Spruce, 108. " Stone, 109. " Transparent Gold, 108. " Yellow, 106. Ochres and foul air, 359. " Red, 146-150. " Yellow, 105-109. Ocre de Ru, 108 Oil, coal-tar colours in, 247. " water-colour cakes in, 50. Oils, 33, 152, 194. Olive, 28. " analysis of, 330. " as a colour, 325. " contrast of, 325. " on the Tertiary, 325. OLIVE PIGMENTS:-- Burnt Verdigris, 331. Dewint's Green, 330. Mixed Olive, 328. Olive Green, 330. Olive Lake, 331. Olive Oxide of Chromium, 331. Olive Rinman's Green, 332. Olive Scheele's Green, 332. Olive Schweinfurt Green, 332. Olive Terre Verte, 333. Olive purples, 301. Olympian Green, 271. O'Neill, Mr., 159. Opacity of pigments, 48.