his connection with the Isle of Man, 60, 241-242. Manawyddan son of Llyr, his British analogue, 270, 271, 273, 289, 290, 293, 294, 296, 298-304, 313, 315, 317, 321, 338, 352, 373; his attributes, 270-271; accompanies Brân to Ireland, 289-294; marries Rhiannon, 298; defeats the magic of Llwyd, son of Kilcoed, 301-304; constructs the bone-prison of Oeth and Anoeth, 270; helps Arthur in the chase of Twrch Trwyth, 352. Maponos, a Gallo-British sun-god, 276, 328. March, a British god of the Under World, 316, 327, 329, 335, 338. Mark, King, 327, 328. Mars, 51, 204. “Master of All Arts”, see _Ioldanach_. Mâth, a British god, brother to Dôn, 260, 265, 266, 268, 308, 310, 322, 329, 360, 361, 364; meaning of his name, 260; teaches magic to Gwydion, 260; rules from Caer Dathyl, 308; compared with Merlin, 360, 361, 362. Matholwch, king of Ireland, 289-293. Mâthonwy, father of Mâth, 260, 308. _Matière de Bretagne_, the, 363, 365. Matthew Arnold, 3, 16, 356. May Day, 123, 259, 287, 407. May Eve, 377, 407. Maypole, 408. Meadha, the _sídh_ of, 136, 212, 243. Meath, 179. Medb, queen of Connaught, 147, 154, 164-168, 170, 171, 172, 175, 178, 179, 183, 200, 246; makes war on Ulster to get the Brown Bull of Cualgne, 165-166; becomes a fairy queen, 246; is perhaps the original of “Queen Mab”, 246. Mediterranean race, 19; _Mediterranean Race, The_, Prof. Sergi’s, 20. Medrawt, 315, 323, 332, 333, 334, 337, 360, 364. Meleaus, or Melias, de Lile, Sir, 359. Melga, king of the Picts, 375. Meliagaunce, or Meliagraunce, Sir, 359, 365, 407. Melwas, 329, 332, 359, 365, 407. Menai Straits, the, 262, 264. Menw, 343, 344, 351. Mercurius Artaius, a Gallo-Roman god, 274, 313. Mercury, 274, 313. Merlin, 324, 325, 339, 360, 361, 364. See Myrddin. Mesgegra, king of Leinster, 147, 154. Meyer, Dr. Kuno, 38, 134, 154, 184, 190. Miach, son of Diancecht, 62, 80-82, 232. Midas, the British, 328. Mider, Gaelic god of the Under World, 56, 57, 117, 136, 140, 142, 147-151, 154, 157, 175, 179, 205, 211-213, 224, 243, 331-333; rebels against Bodb the Red, 140; gambles with Eochaid Airem for possession of Etain, 149; is besieged in his _sídh_, and helped by the Fenians, 211-213. Midsummer Day, 75, 406, 407. Midsummer Eve, 242. Milé, the ancestor of the Gaels, 122, 123, 126, 129, 130, 132, 146, 153. Milesians, the, 76, 125-127, 129, 145, 153, 229, 230, 243. “Milky Way”, the, 62, 253, 268. Minerva, 275, 277, 413. Minos, 153. Miodhchaoin, 97, 105, 106. Mistletoe, 18, 33. Mithras, a Persian sun-god worshipped at York, 275. Mochdrev, 310. Mochnant, 310. Modron, wife of Urien and mother of Mabon, 328, 338. Mona, see Anglesey. Mongan, an Ulster prince, a reincarnation of Finn mac Coul, 37. Monmouth, Geoffrey of. See Geoffrey. Morc, son of Dela, a king of the Fomors, 67, 327. Mordred, Sir, 315, 334, 360, 364, 374, 375. Morgawse, sister to Arthur, 323.