Palestine, dormant volcanoes of, 126-135 Palmieri, Prof., 55 Pantelleria, 74 Phlegræan fields, 85 Phonolite, 263 Pitchstone, 264 Pliny, 2, 4 Porphyrite, 262 Powell, Major, 138 Pre-Tertiary volcanic rocks, 187 _et seq._; of British Isles, 196 _et seq._ Puy de Dôme, 105-110 Pythagoreans on volcanoes, 2-3 Quito, Cordilleras of, 25 Rangitoto, 19, 149 Reyer, Dr. E., 17 Rhine valley, volcanoes of, 113 _et seq._ Rhyolite, 263 Riviera in 1887, earthquake of, 219 Rocca Monfina, 80 Roderberg, 119, 120 Rome, 88-89 Rosenbusch, H., 260 Roto Mahana, 151 Ruapahu, 151 Russell, Hon. Rollo, 213 Rutley, F., 260 St. Helena, 37 San Francisco, Mount, 138 Santorin, 76-83 Schehallion, 10 Schumacher, 127 Scotland, volcanic districts of, 172 _et seq._ Scrope, Poulett, 5, 73, 93, 98 Scuir of Eigg, 180-184 Seismic phenomena, special, 201 _et seq._, 217 _et seq._ Shasta, Mount, 140 Siebengebirge, 116-120 Skye, 177-179 Sleamish, 168 Smyth, Piazzi, 33 Snake River, volcanoes of, 142 Staffa, 185-186 Strabo on volcanoes, 3 Stromboli, 71-73 Sumatra, volcanic action in, 226 Syenite, 262 Symes, R. G., 167 Syria, earthquakes in, 219 Taupo Lake, 150 Taylor, Mount, 138 Tell el Ahmâr, 131 Tell el Akkasheh, 131 Tell el Farras, 131 Tell Abû en Nedâ, 130 Tell Abû Nedîr, 129 Templepatrick, quarry at, 160 Teneriffe, 33 Tertiary period, volcanic activity of, 255 Thucydides, 2 Tonga Islands, volcanoes of, 38 Tongariro, 151 Trachyte, 263 Trass of Brühl Valley, 123-125 Tristan da Cunha, 37 Tristram, Canon, 127, 131 Utah, volcanoes of, 137 Verbeek, R. D. M., 202 Vesuvius, 4, 14, 41-60, 67, 229 Volcanoes, historic notices of, 1-5; form, structure, and composition of, 10-19; lines and groups of active, 20-29; of mid-ocean, 30-40; extinct or dormant, 84 _et seq._; special volcanic and seismic phenomena, 201 _et seq._; the ultimate cause of volcanic action, 225 _et seq._; whether we are living in an epoch of special volcanic activity, 253-256; brief account of volcanic rocks, 259-265 Vulcanists, 5 Vulcano, 69, 71 Wallace, A. R., 81 Waltershausen, W. S. von, 7, 61 Wellington, Mount, 149 Wharton, Capt., 212 Whymper, E., 18 Yarmûk, valley of the, 129, 131 Yellowstone Park, 145 Zirkel, F., 260 Zöllner, 240 THE WALTER SCOTT PRESS, NEWCASTLE-ON-TYNE. The Contemporary Science Series. EDITED BY HAVELOCK ELLIS. * * * * * Crown 8vo, Cloth, 3s. 6d. per vol.; Half Morocco, 6s. 6d. I. THE EVOLUTION OF SEX. By Professor PATRICK GEDDES and J. ARTHUR THOMSON. With 90 Illustrations. Second Edition. "The authors have brought to the task--as indeed their names guarantee--a wealth of knowledge, a lucid and attractive method of treatment, and a rich vein of picturesque language."--_Nature._ II. ELECTRICITY IN MODERN LIFE. By G. W. DE TUNZELMANN. With 88 Illustrations.