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 S 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