Russian Revolution, barricade on the Litenie, II, 264; Cossacks in, II, 253, 259-261; Czar dissolves Duma, II, 255; Duma takes command, II, 286; people charged by police, II, 254; soldiers join revolutionists, II, 267 S Sailly-Saillisel, French attacks on, II, 102-105 St. Julien, fighting at, I, 262-264; penetration of, I, 244-246 St. Mihiel, Battle of, III, 254-257 Saloniki, British operations at, II, 248, 250 Sambuks, cruise in, I, 191-193 Samson, air adventure at Gallipoli, I, 232 Sand Dunes, I, 119-120 Sazanoff, M., receives German ambassador, I, 27 _Scharnhorst_, in Falkland fight, I, 147-170; in Pacific, I, 147-148 Second Division, at St. Mihiel, III, 255; in drive for Soissons, III, 252; takes St. Etienne, III, 262; takes Beau Repaire Farm, and Vierzy, III, 252; with French near Rheims, III, 261-262 Seicheprey, Twenty-sixth in battle, III, 249 Selective Draft, classes exempt, II, 309; liability to service, II, 304; physical examination of men, II, 308; registration, II, 305-312 Serajevo, assassination at, I, 10 Serbia, announcement of expedition against, I, 19; defended by Russia, I, 14; demands from, I, 11; replies to ultimatum, I, 22-23; ultimatum to, I, 14 Sergy, taken by Forty-second Division, III, 253 Seventy-eighth Division, in reserve at St. Mihiel, III, 255 Seventy-ninth Division in Argonne, III, 259 _Shark_, sunk at Jutland Bank, II, 52 Shipping Board, II, 340 Sixtus, Prince, emperor's letter to, III, 155-156 Smith-Dorrien, Sir Horace, services of, I, 69-70 Smuts, General Jan Christiaan, III, 32-53 Soissons, American First and Second Divisions in drive toward, III, 252; Franco-American drive toward, III, 224-226; entered by Allies, III, 226 Solf, Dr., opinion on German colonies, III, 47 Somme, Battle of the, II, 67-113 Somme and Ancre, lines between, II, 71 _Sparrowhawk_, sunk at Jutland Bank, II, 52 Spee, Graf von, commands cruisers in the Pacific, I, 147-155; in Falkland light, I, 162-170; wins Coronel fight, I, 148-156 Struma River, bridged by British engineers, II, 250; British positions on, II, 245; rise hinders operations, II, 248 Subchasers at Corfu, III, 286 Submarine War Zone proclaimed, II, 219 Submarine Warfare, American lives lost, II, 279; American vessels sunk, II, 200; in the Mediterranean, II, 282; American ships, II, 269-384; proclaimed by Germany, II, 194, 196-197; the _Sussex_ case, II, 194-196 Submarines, hunt each other in the dark, II, 135-136 Submarines, American, III, 119-137; cross the Atlantic, III, 119-124; go out on patrol, III, 126-134; how it feels to be depth-bombed, III, 131-132; the mother ship, III, 124-125 Suez Canal, control of the, I, 138; importance, I, 138 Summerall, Major General Charles P., III, 263 _Sussex_, torpedoed without warning, II, 283 _Sussex_ Case, II, 194-196 T Tagliamento, importance of bridges, III, 91