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