Animal Æthiops, 348. " charcoal, 397-399. " jelly, 50. Anotta, 255. Antimony, Golden Sulphur of, 256. " Orange, 256. " Red, 159. " White, 79. " Yellow, 105. Antipathies of pigments, 193. Antwerp Blue, 207. " Brown, 339. Apelles, 7, 293. Archil, 303. " Purple, 303. Arethas, 217. Armenian blue, 5, 217, 228. " bole, 147. " stone, 228. Arsenical pigments, 273. Arsenic green, substitutes for, 288, 290. " white, 79. " yellow, 116. Art and Science, 238, 412. Artificial Ultramarine, 209-216. " acid pigments with, 214. " adulteration of, 215. " green in, 211. " gum with, 214. Artificial Ultramarine, in siliceous painting, 212. " origin of, 209. " prize for, 209. " test for, 212. Artists and painters, 182. Arts, Society of, 130. Ash, Ultramarine, 379. Ashes, Blue, 228. Asphaltic Lake, the, 337. Asphaltum and Asphalt, 337. " Liquid, 339. Association of Science, British, 357. Assyrians, colouring and colours of, 6. Augustus Cæsar, 295. Aureolin, 42, 47, 83-87. " Chemical News on, 84. " in admixture, 86. " Mr. Aaron Penley on, 85. " the purest yellow, 84, 384. Aurine, 162. Autotype process, the, 401. Avignon, berries of, 312. Axiom, a wholesome, 201. Axioms for compounding, 250. Azuline, 162. Azure, 192, 196, 217. B. Barff, Mr., 212. Barium and Bismuth chrome greens, 280. Barthe and Laurent, MM., 235. Bartholomew, Mr., 143. Baryta, Ferrate of, 165. " Silicate of, 290. Barytic White, 65. Beauty in Pigments, 46. Beeswax, 50. Berries, French, Persian, and Turkey, 212. Berzelius, 169. Bice, Green, 187. Bignonia chica, 367. Bismuth Purple, 304. Bixa Orellana, 255. Bixine, 256. Black, 27. " ancient, 5. " as a colour, 387, 391. " as a pigment, 389. " colours with, 392. " on the Neutral, 387. BLACK PIGMENTS:-- Almond Black, 407. Beggars' Ultramarine, 409. Black Chalk, 404. Black Lead, 382, 393. Black Ochre, 404. Blue Black, 394. Bone Black, 405. British Ink, 395. Charcoal Black, 394. Chinese Ink, 395. Coffee Black, 405. Copper Prussian Black, 408. Cork Black, 409. Earth Black, 404. Frankfort Black, 406. Galena, 394. Graphite, 393. Indian Ink, 395. Ivory Black, 397. Lamp Black, 399. Liege Black, 394. Manganese Black, 406. Mineral Black, 407. Mixed Black, 402. Paper Black, 407. Peach Black, 407. Plumbago, 393. Prussian Black, 404, 408. Purple Black, 408. Spanish Black, 409. Vine Black, 394. Bladder Green, 282. Blanc d'Argent, 71. Blending of pigments, 37. Blood, Dragon's, 137. Bloodstone, 147. Blue, 28. " ancient, 5, 217. " Armenian, 5, 217. " as a colour, 183. " contrast of, 185, 188. " discordant, 185. " on the Primary, 183.