Iarl Strangbow, [275]
Indec, son of De Domnand, [90], [91]
Inis Fail, the Isle of Destiny, [21]
Inismurray, [237], [238], [239]
Iona, [215]
Ireland, art of working gold in, [108], [178]
Ireland, causes of uprising in, [320]
Ireland, condition of, in the eighteenth century, [365], [366], [367]
Ireland, English influence in, [318]
Ireland, life in, two thousand years ago, [177], [178], [179], [180]
Ireland, national debt of, [372]
Ireland, sympathy of U. S. Congress for people of, [366], [367]
Ireland, traditions of, [110]
Ireland, the Insurrection of, [370], [371], [372]
Ireland, visible and invisible, [3]
Irgalac, [149]
Iriel, [149]
Irish writing, earliest forms of, [177]
Islay, [143]
Islay Hills, [119]

James II., [340], [341], [342], [343], [344], [345], [346], [347], [353]
Jura, [119], [123], [143]

Kenmare, [39]
Kenmare Kiver, [39], [104]
Kerry, [5], [62]
Kildare, [210], [221], [232]
Kilkenny, [42], [325], [326], [349]
Killarney, [36], [39], [163]
Killee, [34]
Killmallock Abbey, [303]
Killteran Village, [43]
Kinsale, [340], [349]
King Gorm's Stone, [97]
King William, [345], [346], [347], [348], [349], [350], [352], [365]
Knock-Mealdown Hills, [161]
Knockmoy Abbey, [306]
Knocknarea, [30]

Lake, General, statement of, [370]
Lake of Killarney, [161]
Lakes of Erne, [81]
Lambay, [236], [239], [241]
Land of the Cromlech-builders, [57]
Land of the Ever Young, [95], [96]
Land tenure, [375], [376], [377], [378], [a]379], [380]
Laogaire, [199], [240]
Lame, [143]
Lauzun, [350]
Legamaddy, [45]
Leinster, [5], [162], [225], [226], [232], [345], [350]
Leitrim, [81]
Leitrim Hills, [26]
Lennan in Monaghan, [46]
Life of the Cromlech-builders, [68]
Liffey, the, [242]
Limerick, [349], [350], [351], [354], [357]
Leinstermen, [232], [238]
Loing Seac, [224]
Lough Erne, [341]
Loch Etive, [119], [121]
Lough Foyle, [247]
Lough Garra, [37]
Lough Gill, [29]
Lough Gur, [38], [39]
Lough Key, [37]
Lough Leane, [161], [163]
Lough Mask, [85]
Lough Neagh, [110], [200]
Lough Ree, [140]
Loughcrew Hills, [43]
Louis XIV, [337], [340], [353]
Lug, surnamed Lamfada, the Long-Armed, [92], [93]
Lusk, [241]

Maca, Queen, [110]
Maelbridge, [217]
Mag Breag, [223]
Mag Rein, [81]
Mag Tuiread, [85], [87], [246]
Mangerton, [162]
Marlborough, Duke of, [352]
Mask, [85]
Mayo, [5], [62]
Mayo Cliffs, [26]
Meave, Queen of Connacht, [13], [14], [15], [25], [130], [131], [132], [133], [134], [136], [137], [140], [141], [142], [146], [147], [178], [262]
Meath, [155], [242]
Men of Oluemacht, [144]
Message of the New Way, [264]
Messenger of the Tidings, [182]
Mide, [149]
Miocene Age, the, [58]
Modern form of old Irish names, [234]
Monasterboice, [221]
Monk, [326]
Molana Abbey, [306]
Molaise, [237]
Monasteries and religious schools, [221]
Monroe, [324], [326], [327], [328], [329], [330], [331], [333]
Monument of Pillared Stones, [30]
Moore, [326]
Mount Venus Cromlech, [42]
Mountcashel, Lord, [342]
Mountains of Mourne, [44], [94], [146], [193], [231]
Mountains of Storms, [26], [87]
Moville, [221], [239], [262]
Moytura, [31], [85]
Munster, [5]
Munstermen of Great Muma, [144]
Murcad, [238]

Naisi, [115], [116], [117], [118], [120], [121], [122], [129], [130]
Napier, Sir William, testimony of, [370]
Nectain's Shield, [232]
Nemed's sons, [87]
Nessa, [15], [113]
Norsemen, waning of the, [284]
Northern Cromlech Region, [54]
Northmen, [234], [235], [236], [243], [251]
Nuada, the De Danaan king, [85], [88], [89], [91], [92], [93]

O'Connell, Daniel, [373]
O'Donnell, [321], [322]
O'Neill, Owen Roe, [321], [322], [323], [324], [332], [333], [334], [338]
O'Neill, death of, [333]
O'Neill, defeat of English army by, [326], [327], [328], [329], [330], [331], [360]
Ogma, of the Sunlike Face, [92], [95], [96]
Oscar, son of Ossin, [14]
Oscur, [a]155], [171]
Ossin, son of Find, [14], [15], [16], [155], [161], [162], [167], [171], [172], [177], [181], [194], [246], [262]
Ox Mountains, [87]

Parliament at Dublin, [323]
Parliament of Ireland, [371]
Parnell, Charles Stewart, [380]
Patricius, [182]
Patricius, appeal of, to fellow-Christians of Coroticus, [195], [196]
Patricius, birthplace of, [182]
Patricius, letter of, [182], [183], [184], [185], [186], [187], [188], [189], [190], [191], [192], [193]
Patrick, [17]
Patrick, his first victory commemorated, [198]
Patrick, the dwelling of, [198]
Peat, age of, [34], [36]
Peat, rate of growth of, [33], [35], [66], [67]
Penal Laws, the system of, [373]
Plain of Nia, [85]
Plain of the Headland, [82]
Plain of the Pillars, [85]
Plain of Tirerril, [91]
Plantation of Ulster, [322]
Poem of Ossin, [156]
Potitus, [182]
Prince William of Nassau, [339], [340], [342]
Private taxation, [291]
Pyramids of stone, [93], [a]94]

Quoyle River, [198], [240]

Ragallac, [217]
Raid of the Northmen, [234], [235], [236], [237], [238], [239], [240], [241], [242], [243]
Raids on islands of Irish coast, [257], [258], [259]
Raphoe, [47]
Rathcool, [162]
Rath-Laogaire, [199]
Rath of Badamar, [161]
Red Hills of Leinster, [162]
Reform Bill, the, [372]
Restoration, the, [339]
Roderick O'Conor, [61]
Ros Ruad, [152]
Ros, son of Rudraige, [112]
Rudraige, [44], [112]
Rudraige, hill of, [44], [231]
Runnymead, [317]