Lightning, 62, 66, 69, 86, 87, 100; effects of, 78, 87, 88, 96; portents indicated by, 79, 81, 82, 86, 92, 94, 95, 215; possible pestilential power in, 97; cause of zigzag course of, 102; moral lessons to be derived from a consideration of, 104; safe retreats from, 223; blinding effects of, 292; connected with the planets, 275. ^_a_ Livy (Titus Livius), 209, 213. Roman historian, 59 B.C.-17. Lower Sea; _see_ Propontis. Lucilius Junior, 1, 103, 109, 114, 142, 159 (2), 161, 162, 163, 217, 221, 265, 267, 268. See Introduction. Luxury, introduction of, 45, 46; growth of, 47, 188; illustrations of, 129, 187; denunciation of, 130, 187, 306. Lycia, 140. District S.W. of Asia Minor. Lycus, 142. River, probably of Phrygia in Asia Minor, flowing into the Maeander. Lydia, 139. District in W. of Asia Minor. Lyncestis, 134. Macedonia, 138, 207, 224, 303. Magnesia, 122. Town of Lydia. Mankind, compared to ants, 6; early ages of, 45, 46; final destruction of, 147, 152; re-creation of, after the deluge, 155; world not made only for, 305. Marmora or Marmara (Sea of); _see_ Propontis. Mars, the planet, 10, 275, 284. Marseilles, 174. Marshes, 233; of the Nile, 236. Magalenopolis (or Megalepolis or Megalopolis), 257. Town in Arcadia. Melas, 137. River of Boeotia in Central Greece. Memphis, 170. Great Egyptian city a little above Cairo. ^_a_ Menander, 165. Athenian comic poet, 342–291 B.C. Mercury, the planet, 284. Messalina, 163. Third wife of Emperor Claudius; put to death by Narcissus, 48. Messana (Messina), 142. Metalliferous veins, 126. Metals, melted by lightning, 78, 96; denunciation of the search for the precious, 207, 215. Meteorology (_Sublimia_), scope of, 51. Meteors, 8–11, 37, 38, 40, 275, 276, 292, 293, 296. ^_a_ Metrodorus (of Chios), 248 (2). Philosopher who flourished about 330 B.C. “Sceptic.” Disciple of Democritus, perhaps. Milky Way, 289. Mind, the human, its nature and seat unknown, 297. Mines, water in, 154; ancient, explored by Philip of Macedon, 207. Mirrors, 22, 23, 24, 27, 41, 42, 44, 45, 47. Mock-suns, 35. Moon, eclipse of, 298; varying colour of, 300. Moral reflections, Seneca’s, 1–8, 42, 44–47, 102–105, 109–114, 130–132, 143–156, 159–166, 186–190, 207, 213–217, 222–229, 254, 265–268. Mountains, insignificance of height of, compared with the whole mass of the earth, 184. Mushrooms, 189. Mylae, 142. Town on N. coast of Sicily, near Messina. Myndus, 274, 290. Town in Caria. Naples, partly damaged by earthquake of A.D. 63, 221. Narcissus, 164. Freedman of Claudius, put to death by Agrippina, 54. Natural Philosophy, 3, 8.