PLATO. Celts and, 17; evidence of, to Celtic characteristics, 36 PLINY. Religion of magic discussed by, 61 PLUTARCH. Land of the Dead referred to by, as the western extremity of Great Britain, 131 PLUTO (Gk. Pluton). Dis, equivalent; god of the Underworld, 88; associated with wealth, like Celtic gods of the Underworld, 349 POLYB´IUS. Description of the Gæsati in battle of Clastidium, 41 POLYNESIAN, the practice named “tabu” and the Irish _geis_, similarity between, 165 PORTUGAL. Place-names of, Celtic element in, 27 POSIDON´IUS. On bardic institution among Celts, 57 PROCOP´IUS. Land of the Dead referred to by as the western extremity of Great Britain, 131 PROVINCE OF THE SPEARMEN (Irish, _Laighin_—“Ly-in”). See Leinster, 154 PRYDERI (pri-dair’y) (Trouble). Son of Pwyll and Rhiannon; his loss 363; his restoration by Teirnyon, 365; Kicva, the wife of, 365; the tale of Manawyddan and, 373-378; Gwydion and the swine of, 378; his death, 379 PWYLL (poo-till; modern Powell). Prince of Dyfed; how he got his title _Pen Annwn_, or “Head of Hades,” 336-359; his adventure on the Mound of Arberth, near the Castle of Narberth, 359-365; fixes his choice on Rhiannon for wife, 360; Gwawl’s trick on him, 361; Rhiannon’s plan to save Pwyll from Gwawl’s power, 361; weds Rhiannon, 362; imposes a penance on his wife, 363; his son Pryderi (Trouble) found, 365 PYTHAG´ORAS. Celtic idea of transmigration and, 80 PYTH´EAS. The German tribes about 300 B.C. mentioned by, 31 Q QUELGNY, or CUAILGNÉ. Cattle-raid of, made by Queen Maev, 180; Brown Bull of, owned by Dara, 202; the theme of the “Tain Bo Cuailgné” is the Brown Bull of, 203; Brown Bull of, is Celtic counterpart of Hindu sky-deity, Indra, 203; Brown Bull of, captured at Slievegallion, Co. Armagh, by Maev, 211; white-horned Bull of Ailell slain by Brown Bull of, 225; reputed author of, Fergus mac Roy, 234; Sanchan Torpest searches for lost lay of, 234-238 R RĀ. Egyptian Sun god; ship symbol in sepulchral art of Egypt connected with worship of, 74-76 RATH GRANIA. King Cormac and Finn feasted at, 300 RATH LUACHAR. Lia keeps the Treasure Bag at, 255 RATHCROGHAN. Maev’s palace in Roscommon, 202 RED BRANCH. Order of chivalry which had its seat in Emain Macha, 178; the time of glory of, during Conor’s reign, 181; heroes of, and Cuchulain strive for the Championship of Ireland, 195, 196; Hostel, Naisi and Deirdre at, 199, 200; with Cuchulain and Conor passes away the glory of, 241 RED HUGH. Ulster prince, father of Macha, brother of Dithorba and Kimbay, 151 RED RIDERS. Conary’s journey with, 170, 171 RELIGION. The Celtic, 46; Megalithic People’s, that of Magic, 58; of Magic, invented in Persia and by Zoroaster, 61 REVUE CELTIQUE. Dr. Whitley Stokes’ translation of the “Voyage of Maeldūn” in, 309