Olaf, King of Denmark, buried with his sword, 5. Oland, island of, bronze plaques with representations of warriors found in, 20, 116. Old Stirkoke, Broch of, 232. Okstrow, Birsay, Orkney, Broch of, 199, 240. Orem’s Fancy, Stronsay, Orkney, urns of steatite found at, 67, 68. Ornament of the bowl-shaped brooches of brass, characteristics of the, 25. —— of the penannular brooches of silver of the Viking time, 93–99. Orkney, ornamented stone balls found in, 168, 169. —— Brochs of, 197, 236, 238, 240, 242, 245. _Orkneyinga Saga_, notice of hunting of Reindeer in, 231. Otranto, Italy, the Truddhu of, 206. Paganism, typical character of burials of, 2. Pantellaria, the Sesi of, 206. Petrie, George, grave-mounds explored by, 58, 67. Pierowall, Westray, Orkney, grave-mounds of the Viking time at, 55, 58. Philostratus, notice of enamelling by, 125. Pins of Bone found in Brochs, 237, 239, 246, 247. —— of Bronze found in Brochs, 233, 237, 242. Pirnie, parish of Wemyss, Fife, Earth-house at, 292. Pitalpin, near Dundee, bronze spiral armlet found at, 159. Pitkelloney, near Muthil, bronze armlets found at, 143. Plunton Castle, bronze armlet found near, 137. Pottery of the Brochs, the, 215, 221, 230, 237, 240, 242, 244. —— of the Earth-houses, the, 287, 288, 295, 298, 304. Quendale, Shetland, arm-rings of silver found at, 109. Quern found at Balmaclellan, Kirkcudbright, 126. Querns found in Brochs, 212, 220, 222, 243, 246. —— found in crannogs, 270. Rattar, Caithness, arm-rings of silver found at, 109. Rattray, Castle Hill of, pierced vase of clay found at, 12. Rendall, William, exploration of Viking graves at Pierowall, Westray, by, 55. Reindeer, remains of, found in Brochs, 221, 231. Rhind, Alexander Henry, exploration of the Broch of Kettleburn by, 209. Rousay, Orkney, urns of steatite found in, 71. Rygh, Professor, comparison of oval brooches found in Norway and in Scotland by, 35.