My experiments with volcanoes - Thomas Augustus Jaggar

quakeproof engineering, [132]
Quartette Gold Mine, [27]
Queen Charlotte, [150]
Quensell boys, [149]

range finders, [125–127]
rats, Polynesian, [136]
Red Beds, [8], [47]
Redlands, [103]
Reyer, H., [16]
rhythmic periods, [166–167]
Richmond plantation, W. I., [159]
Richter, C. F., [183]
Rieber, Frank, [162–164]
ripplemarks, [3–4], [32–54]
Roberts, Sumner, [100]
Rockefeller, John D., [184]
Rockefeller laboratory and observatory, [29]
Rocky Mountains, [7], [10], [18], [23], [46], [47], [48]
Romberg, Arnold, [101–102]
Rome, [103]
Roosevelt, Franklin Delano, [17]
Roraima (ship), [62], [160]
Roseau, [11]
Rosenbusch, H., [12–16]
Rotorua, [109], [111]
Royal Society of London, [72], [156]
Ruapehu Volcano, [110]
Rushforth, Paul, [171–172]
Russell, I. C., [56]
Rutherford, E., [110]
Ryukyu Archipelago, [103], [106], [109]
Ryukyu-Sakurajima line, [108]

Saba, [157]
Sagami Bay, [133–134]
St. Helena, [103]
St. Kitts, [62], [157]
St. Lucia, [160]
St. Martin, [157]
St. Pierre, [55–65], [71], [160], [161]
St. Vincent, [56–66], [68], [158–160]
Sakurajima, [xi], [71], [81], [103–106]
— earthquake (1914), [103–106]
Salvador, [80]
Samoa, [147], [150]
San Andreas rift, [137]
San Francisco earthquake (1906), [xii], [45], [55], [134], [137]
San Jose, Costa Rica, [79]
San Sebastiano, destruction of, [69]
Santa Ana, [80]
Santa Maria peak, [81]
Sarana Bay, [141]
Saratoga Springs, [18]
Sato, Sutejiro, [155], [166], [168]
Saturn, [184]
Saxony, [14]
Scandinavia, [12–13], [182]
Schneeberg granite, [14]
Schrader, F., [18]
Schweitzer, A., [161]
Scientific American, [126]
scratch tester, [172]
sea level, [130]
sea lions, [141]
seals, [144]
Searchlight, Nevada, [26–30]
Seattle, [72], [138], [142]
Secretary of the Interior, [155]
Section of Volcanology created, [136]
sedimentation, [32], [38], [76], [181]
Seeley, George, [72], [74]
seismic recorders, [125–126], [143], [144]
Shaler, Nathaniel S., [xi], [3], [5], [19], [28], [172]
Shepard, F. P., [170]
Shepherd, E. S., [86–89], [92], [112], [115], [166], [167], [184]
Shimonoseki Strait, [109]
Shipman, Herbert, [153]
Shishaldin Volcano, [154]
shock recorder, [126], [158], [160]
Shumagin Islands, [143]
Sierra Nevada, [28], [116], [136]
Sinclair, Gregg M., [162], [170], [171]
Sinton, Bill, [122], [147]
Smith, George Otis, [112], [137]
Smith Philip Sidney, [18], [21], [22]
Smith, William, [21]
Smithsonian Institution, [112]
Snake River, [36]
Snedeker, James, [168]
Solfatara, Italy, [127]
solfataras, [11–12], [62], [65], [68], [80], [108], [129], [156], [158], [160]
Soufrière, [56–55], [72], [159]
South Dakota, [21–25], [28], [37], [38], [46], [47], [55], [78]
South Island, N. Z., [109]
South Kona, [92], [93], [125], [173]
Spalding, Walter, [95]
Spearfish, Arizona, [23]
Speight, R., [110]
Spofford, Charles, [79], [84], [129]
Springfield, Mass., [71]
Spurr, J. E., [18], [172]
Stalheim, [12]
Stanford students, [26]
Stanley, Henry M., [12]
Starr (ship), [138], [140]
State Street, [72]
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]

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]

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]
University of California, Berkeley, [89], [137], [163]
University of Hawaii, [101], [162], [164], [168], [170], [171]
University of New Zealand, [110]
Uranus, [184]
Usu Volcano, [106]
Utah, [18], [22], [67]
Uwekahuna, [173]