Stearns, Harold T., 111, 154, 165, 166 Stewart, Richard, 143 Stinking Water mine, 8 Stockholm, 13 Stokes, Mrs., 63 Stokes, Rita, 62–64 Stone, Ralph, 17, 37, 43 Stromboli, 68, 71 Stübel, A., 67, 76, 177, 181, 182 Suess, E., 116 sugar mills, 159 Sulphur Bank, 112, 115, 127–129, 173 Sunlight mine, 8 sunspots, 65, 68, 166 -- intervals of, 68 surveys, 7–12, 23–25, 30, 76, 137, 138, 142–143 -- Alaskan, 142–143 -- Black Hills, 23–25 -- Fortieth Parallel, 25 -- Hawaii Geological, 30, 76 -- Lassen National Park, 137 -- New Zealand Geological, 110 -- Yellowstone, 7–12 Suwanose Island, 108 Sweden, 13, 170 Sweeney, H. P., 72, 74 swelling and slumping, 131 swelling mountain, 129–131 Switzerland, 43 T Tanager (ship), 150 Tanegashima, 106 Tarawera, 109 Tarawera Mountain, 110 Tarumai Volcano, 77–78 Taupo Belt, 109 Taupo District, 161 Taylor, Griffith, 112 teaching, 55–56, 72, 78 -- at Harvard, 55–56, 72 -- at Massachusetts Tech, 55–56, 72, 78 Technology Expedition, 72, 138 Technology Review, 74 Teddy, the dog, 123 temperature wells, 127–129 Teneriffe, 71 Tennessee, 37 terns, 135 Tertiary, 8–10, 15 Tetons, 36 theater, the, 5 Thomson, Allan, 109 Thomson, William, 109 Thorndike, Charles, 100 Thurston, Lorrin A., 77, 86, 89, 111, 122, 142, 153, 162 tidal system (volcanic), 70 tidal waves, 134, 156, 169–170 -- Hawaii (1946), 156, 169, 170 -- Japan (Tokyo), 134 tide gauge readings, 130 Tin Can Island, 110, 147–150 Tokyo, 81, 102, 103, 106, 109, 114, 132–134, 168 -- earthquakes, 103, 114, 132–134, 168 Tonga, 109, 110, 114, 181, 147–150 Tonga Deep, 109 Tonopah, 29 Tonto fault, 30 Triassic lavas, 47 Tridacna, 35, 135 Trinidad, 61 Trondhjem, 12, 13 Tufts College, 17 Tuscarora Deep, 109 Twigg-Smith, William, 112 U Unita Mountains, 30 Umnak Island, 75, 138, 141 Unalga (ship), 140 Unalaska, 75, 137, 140, 141 Unimak, 154 Union Pacific, 25 United Fruit Company, 79 U. S. Army, 113, 169 U. S. Army Air Force, 153 U. S. Army Engineers, 82, 156 U. S. Biological Survey, 144 U. S. Coast and Geodetic Survey, 130 U. S. Coast Guard, 135, 140, 144 U. S. Congress, 156, 162 U. S. Consulate (Japan), 132 U. S. Eclipse Expedition, 110, 147–150 U. S. Geological Survey, 17–18, 19, 21, 22, 50, 54–56, 64, 89–90, 111–114, 129–131, 136–138, 142, 154, 157, 169, 172–173 U. S. Marines, 132, 133, 168 U. S. Navy, 55–57, 122–123, 131, 132, 147, 168, 170 U. S. Naval Observatory, 110, 147–150 U. S. Weather Bureau, 111–114, 137 University Club, Boston, 85