=Naos.= _See_ Sanctuary =Napoleon's= expedition to Egypt, 10 =Naram-Sin=, king, date of, 369 =Naville=, Horus, myth of, 148, 153, 390 =Nebuchadnezzar II.=, ziggurat at Babylon, 367 =Nephthys=, 31, 35 in pyramid times, 329 =Nergal=, son of Ía and Duazag. 373 = spring sun, 373 = midsummer sun, 373 =Neshem=, 31 =New= year's day, variation in date of, 250 =Nigidius Figulus=, 248 =Nile= Flood, at Aswân, 240 at Cairo, 233, 240 rate of, 240 gauges, 235 gauge of, heights above sea-level, 236 at Armant, 235 at Aswân, 235 at Asyût, 235 at Suhag, 235 god sacred to, 229 inundation, effects of, 226, 232 red, 238 rise of, appearance of, 238 at Rôda, 237 average rate of, 240 description of, 241 festival of, 198 importance of, 228 indication of, 237 phenomena coincident with, 249 rate of, 240 warnings of, 239 green water at, why it heralds rise, 238 colour, origin of, 237 time of, rising, 85, 230 =Nilometer= at Aswân, 234 =Nimrûd=, mounds at, 86 modern Calah, 86 =Ninib=, sun-god, 375 =Nissen= on temple building, 173, 175 =Nubia=, mode of telling time at night, 342 =Nuri=, buildings at, 347, 356 =Nu-t= or Nu, 32, 33 double representation of 34 relation to Seb, 35 O =Oannes.= _See_ Ía =Obelisk=, at Annu, orientation of, 214, 326 =Obliquity= of ecliptic, values of, 113 =Observations= of stars daily as opposed to yearly, 341 =On.= _See_ Annu =Oppolzer=, risings, heliacal of Sirius, 200, 249, 253, 268 =Orion=, constellation of, 137, 143 =Ormuzd= or Ahura-Mazda, 6 =Osborn=, the Nile, 232, 238 =Osiris= in Book of the Dead, 28, 35 hymn to, 26 mythology of, 296 representation of, 137 moon-god, 389 sunset-god, 25 southern worship, 349 temples of, 187 at Abydos, 338 bowls at, 248 direction of orientation, 82, 206, 393 Tmu or Atmu, 295 traced in Babylonia, 334, 377 = waning moon, 297 P =Padoramen= priest, titles of, 340 =Palmyra=, temples at, equinoctial, 92, 94, 367 =Parthenon= at Athens, 164, 415, 416 =Parthey=, 216 =Patah.= _See_ Ptah =Pekin=, sun temple at, 88, 89 =Penrose= on Greek temples, 98, and chap. xxxviii, _passim_ =Pepi=, King, date of, 207, 262, 337 restoration of Denderah, 204 temple foundations, 354 =Period=, Sothic, 256 =Petrie=, Flinders, on Stonehenge, 90 Mêdûm pyramid, 335, 337 Tell-el-Amarna, 323 =Phact= (α Columbæ), 82, 354, 360, 381 =Philæ=, Chnemu at, 384 inscription at, 261 Isis-Sati at, 218 temples at, 73 early to Canopus, 311, 360 =Pierret=, hieroglyph of hippopotamus, 362 =Pile= dwellings in Pun-t, 348 =Pisces=, 378 =Place=, on Assyria, 86 =Pleiades=, temples oriented to, in Greece, 419, 424 =Pompeii=, temple of Isis at, 320