reticulatum, 51;
Signinum, 247 f.
Orchestra, reserved for senators, 146;
of Greek theatre, 151.
Order appropriate to temples, 15;
origin of different orders, 102 f.f.
Organ, water, 299 f.
Ὁργανον, 283.
Orientation of streets, 24 f.f.;
of temples, 116 f.
Orion (constellation), 268.
Ornaments of the orders, 107 f.f.
Orpiment (ἁρσενικὁν), 214.
Ostrum, source of purple dye, 220.
Paconius, 289.
Paeonius of Ephesus, 200.
Palaestra, 159 f.f.
Palla, stone quarries at, 49.
Panels of doors, 118.
Paphlagonia, intoxicating springs of, 239.
Παραδρομἱδες, 188.
Paraetonium, 235;
white, 214.
Parapet of theatre, dimensions of, 148.
Parmenio, 273.
Paros, 289.
Pastas, 186.
Patras, cellae of temple built of brick, 53.
Patrocles, 273.
Pausanias, son of Agesipolis, 7.
Peiraeus, 234;
naval arsenal at, 198.
Peisistratus, 199.
Pelecinum (sun dial), 273.
Penne, 234.
Pentaspast (hoisting machine), 285.
Pergamus, 196.
Peripteral temple, 75 f.
Peristyle, 186;
decorations of, 210 f.;
proportions of, 179;
Rhodian, 186.
Peritreti, 303 f.
Perseus (constellation), 266.
Persian Porch, 7.
Persians, statues of, 8 f.
Perspective, commentaries on by Agatharcus, Anaxagoras, and Democritus, 198.
Pesaro, 63.
Pharax of Ephesus, 70.
Phasis, 231.
Phidias, 69.
Philippus (physicist), 269.
Philip son of Amyntas, 310.
Philo, 198, 200;
of Byzantium, 199.
Philolaus of Tarentum, 12.
Philosophy, why useful to architect, 8.
Phocaea, 103.
Phrygia, 236.
Phthia, 102.
Picenum, 49.
Picture galleries, 179, 186.
Piles, of alder, 61;
olive, or oak, 88.
Πἱναξ of water organ, 299.
Pine, 61.
Pixodorus discovers marble near Ephesus, 289;
his name changed to Evangelus, 290.
Planets, 257 f.f.;
their retrograde movement, 260 f.
Plataea, battle of, 7.
Plato, 195, 251;
rule for doubling the square, 252.
Πλειἁδες, 189.
Plinthium (sun dial), 273.
Πνευματικὁν, 283.
Po, 231.
Podium of theatre, height of, 148.
Pollis, 199.
Πὁλοι (pivots of heaven), 257.
Polus (star), 267.
Polycles of Ephesus, 70.
Polyclitus, 11, 69.
Polyidus, 199, 310.
Polyspast (hoisting machine), 288.
Pompeian pumice, 47.
Pompey, colonnades of, 154;
temple of Hercules, 80.
Pontic wax, 216, 217.
Pontus, 214, 220, 231, 236.
Poplar, 60.
Pormus, 199.
Posidonius, 241.
Pothereus (river), 20.
Pozzolana, 46 f.
Praxiteles, 199.
Pressing room, 183 f.
Priene, 103;
Temple of Minerva at, 11, 198.
Primordial substance, 42.
Prison, location of, 137.
Proconnesus, 289.
Pronaos, 114 f.f., 120.
Proportions, 72, 174 f.;
of circular temples, 123 f.;
of colonnades, 154 f.;
of columns and intercolumniations, 78 f.f., 116;
of the Corinthian order, 106 f.;
of doorways of temples, 117 f.f.;
of Doric temples, 109 f.f.;
of the Ionic order, 90 f.f.;
of rooms, 176 f.f.
Propriety, 14 f.f.
Proscaenium of Greek theatre, 151.
Proserpine temple of Corinthian order, 15;
temple of, 200.
Προς παν κλιμα (sun dial), 273.
Προς τἁ ἱστοροὑμενα (sun dial), 273.
Prostas, 186.
Prostyle, 75.
Proteus, daughters of, 239.
Prothyra, 188.
Protropum (wine), 236.
Προτρυγητἡς (star), 265.
Pseudisodomum, 52.
Pseudodipteral temple, 75, 78, 82.
Pseudoperipteral temples, 125.
Pteroma, 82, 114, 125.
Ptolemy, 196, 197;
Philadelphus, 197.
Public buildings, sites of, 31 f.
Pump of Ctesibius, 297 f.
Purple, 213, 219; substitutes for, 220 f.
Puzzuoli, 218.
Pycnostyle temples, 78 f.;
proportions of columns in, 84.
Pyrrus, 199.
Pythagoras, 42, 130, 225, 251, 269;
right triangle of, 252 f.
Pytheos, 11, 109, 198, 199.
Pythian games, 251.
Quarries of Grotta Rosa, Palla, Fidenae, Campania, Umbria, Picenum, Tivoli, Amiternum, Venetia, Tarquinii, Lake of Bolsena, Ferento, 49, 50.
Quicksilver, 215 f.f.
Quirinus, temple of, 78.
Quiver (sun dial), 273.
Rainwater, 229 f.f.
Ram, battering, 309 f.;
Hegetor's, 314 f.
Ram (constellation), 266.
Raven (constellation), 268.
Raven, a machine of no value, 310 f.
Ravenna, 21, 61, 63.
Reduction of columns, 114.
Refraction explained, 175.
Resin, soot of, used to make black, 218.
Resonant sites of theatres (ἁντηχουντες), 153.
Retaining walls, 190 f.
Reticulatum opus, 51.
Retrogression of planets, 261.
Rhine, 231.
Rhodes, 55 f., 167, 219, 220;
length of shadow of gnomon at, 270;
siege of, 316 f.
Rhone, 231.
River (constellation), 268.
Rivers rise in the north, 231.
Rome, 63, 64, 78, 80, 145, 217;
site of, determined by divine intelligence, 174;
length of shadow of gnomon at, 270.
Romulus, hut of, 40.
Roofs, of mud, 39 f.;
timbers of, 107;
of Tuscan temples, 122;
of circular temples, 124.
Rooms, proportions of, 176 f.f.;
proper exposure for, 180 f.;
should be suited to station of the owner, 181 f.
Round Building at Delphi, 198.
Salmacis, spring of, 54.
Salpia in Apulia, 21.
Sambuca illustrates effect of climate on voice, 171.
Samos, 12, 103, 263, 269, 273;
Doric temple of Juno in, 198.
Sand, 44 f., 48.
Sandarach, 214; made from white lead, 219.
Sardis, 53.
Sarnacus, 199.
Saturn (planet), 260, 261, 262.
Satyrus, 199.
Scaena of theatre, 146;
dimensions of, 148;
scheme of, 150;
decorations of, 150;
of theatre at Tralles, 212.
Scale, musical, 141.
Scaling machine, 311.
Scamilli impares, 89, 155, 320.
Scaphe (sun dial), 273.
Scopas, 199.
Scopinas, 12, 273.
Scorpion (constellation), 266.
Scorpiones, rules for making, 303 f.f.
Scotia, 90, 112.
Scutula of ballistae, 306 f.
Seats in theatre, dimensions of, 148.
Selinusian chalk (ἱσἁτις), 220.
Semiramis, 235.
Senate house, location of, 137.
Septentriones (She-Bears), 267.
Septimius, P., 199.
Serapis, site of temple of, 31.
Serpent (constellation), 266.
Serpent-holder (constellation), 266.
Sesterce, 74.
She-Goat (constellation), 266.
Ship, motion of, explained, 291.
Shipyards, 164.
Sicily, 236.
Siege machines, 309 f.f.
Signinum work, 247 f.
Signs of the Zodiac, 258;
sun's course through, 264 f.;
shown on dials, 276 f.
Silanion, 199.
Silenus, on the proportions of Doric structures, 198.
Simae (ἑπαιετἱδες), 96, 108.
Sinope, 214.
Smyrna, 197, 214;
Stratoniceum at, 154.
Snake (constellation), 268.
Socrates, 69, 70, 195.
Soli, 235.
Soracte, stone quarries of, 49.
Sounding vessels in the theatre, 143 f.f.
Southern Fish (constellation), 267.
Spain, 214;
cinnabar mines of, 217.
Sparta, paintings on brick walls at, 53.
Spica (star), 265.
Stables, 184, 186.
Statonia, 50.
Steelyard, description of, 291.
Steps of temples odd in number, 88.
Stereobates, 88.
Stone, 48, 49 f.
Stratoniceum, 154.
Streets, directions of, 24.
Stucco, 204 f.f.;
in damp places, 208 f.f.
Stucco-workers, Greek, 208.
Stylobates, 88.
Substructures of houses, 189 f.f.
Sulphur springs, 233 f.
Sun, 258 f.;
course of, through the twelve signs, 264 f.
Sundials, 273 f.f.;
how designed, 270 f.f.
Sunium, temple of Pallas at, 124.
Susa, spring at, 240.
Syene, 231.
Symmetry, 14;
in temples and in the human body, 72 f.;
modifications to suit site, 174 f.f.
Syracuse, 273.
Syria, 231, 235, 237.
Systyle temples, 78 f.;
proportions of columns in, 84;
Doric, 113.
Tablinum, proportions of, 178.
Tarentum, 12, 255;
length of shadow of gnomon at, 270.
Tarquinii, 50.
Tarsus, 234, 240.
Teano, acid springs of, 238.
Telamones, 188.
Teleas of Athens, 70.
Τἑλειον (perfect number), 73 f.
Tempering of iron, 18.
Temples, classification of, 75 f.f.;
circular, 122 f.f.;
Corinthian, 102 f.;
Doric, 109 f.f.;
Ionic, 90 f.f.;
Tuscan, 120;
foundations of, 86 f.f.;
orientation of, 116 f.;
proportion of columns of, 78 f.f.;
sites of, 31 f.;
Aesculapius, 15, 198;
Apollo, 31, 78, 80, 200;
Bacchus, 15, 31, 82, 109, 198;
Castor, 124;
Ceres, 32, 80, 200;
Diana, 15, 78, 80, 103, 124, 198, 200, 288 f.;
Equestrian Fortune, 80;
Faunus, 75;
Flora, 15;
Three Fortunes, 75;
Hercules, 15, 31, 53, 80;
Isis, 31;
Juno, 15, 31, 198;
Jupiter, 14, 31, 53, 75, 199;
Honour and Valour, 78, 200;
Mars, 15, 31;
Mercury, 31, 54;
Minerva, 11, 15, 31, 124, 198;
Nymphs, 15;
Proserpine, 15, 200;
Quirinus, 78;
Serapis, 31;
Vejovis, 124;
Venus, 15, 31, 54;
Vulcan, 31.
Teos, 103;
temple of Bacchus at, 82, 198.
Terracina, 236, 237.
Testudinate cavaedium, 177.
Tetrachords, 140 f.f.
Tetrastyle cavaedium, 176.
Thalamos, 186.
Thales, 42, 195, 225, 269.
Thasos, 289.
Theatre, 137 f.f.;
site of, 137;
foundations of, 138 f.;
entrances to, 138, 148;
plan of Roman, 146 f.f.;
plan of Greek, 151 f.f.;
sounding vessels in, 143 f.;
acoustics of site of, 153 f.f.
Thebes in Egypt, 231.
Themistocles, colonnade of, 154.
Theo of Magnesia, 70.
Theocydes, 199.
Theodorus, 198.
Theodorus the Phocian,