Hakon, king of Norway, loses control of Hebrides, 216; Irish sovereignty offered to, 332 Heathen lore, ancient Irish, 176 Hebrides, 74 Hebridean forces, 325; first appearance in Ireland, 329 Heptarchy in Ireland, 113 "herenagh"--airchinnech Hiberni, Hibernia, origin of the names, 67 History of Ireland, how constructed by ancient writers, 89, 98; earliest documents of, 114, 175; distorted views of, 347 I Ibar (Iuḃar), Saint, date of, 161 Ibdaig (Iḃḋaiġ), Ebudeans, 74 Iberi in Irish legend, 91 Iberians, supposed early inhabitants of Britain, 40-42; supposed traces of, 62 Inber Scéne (Inḃear Sgéine), legend of, 93-95 Incastellation policy of Anglo-Normans adopted by Irish, 343 Industrial tribes of pre-Celtic origin, 75-79, 82 Intercourse with the Continent, 242 Iona granted to St. Columba, 197 Irish civilisation, chief defect of, 354 Irish forces under Roman command, 151 Irish language, ancient learned jargon of, 165 Irish law, features of, 312 Irish learning, characteristics of, 240-244 Irish manuscript orthography, origin of, 174 Iron Age in Britain, supposed to have been introduced by Belgae, 42 Iron, Celtic expansion facilitated by possession of, 153 Iverni, 65-68, 104 K Kenneth MacAlpin (Cionaoḋ mac Ailpín), 204 Kingship, law of succession to, 230 Kings, functions of, 352 L Lagin Tuad-Gabair (Laiġin Tuadḋ-Gaḃair), L. Des-Gabair (Deas-Gaḃair), 107 Latin in ancient Irish schools, 241 "Laudabiliter," 286 Law, courts of, 318 Law of succession, evil consequences of, 294, 300 Learning in Ireland, Zimmer's account, 164; testimony of Saint Columbanus, 166 Leinster, ancient extent of, 108, 122, 129, 186; struggle for lost territory of, 188; tribute, 238 Letters in Britain, introduction of, 167-170 Limerick, Norse settlement at, 262 Lincolnshire, pseudo-scientific ethnography exemplified in the case of, 32 Literature in Ireland, beginnings of, 167 Loeguire (Laoġaire), king of Ireland, 182, 188 Luaighni, 80, 104 Luguid (Luġaiḋ), king of Ireland, 190-193 M