n Belgium, III, 264;
in Argonne, III, 259;
at St. Mihiel, III, 255

Nivelle, General, brings up 400 millimeter guns, II, 26

_Nomad_, at Jutland Bank, II, 52

Northey, General, advances in East Africa, III, 37

North Sea, battle of the, I, 85

_North Star_, British destroyer, sunk at Zeebrugge, III, 110

_Nuernberg_, in Pacific, I, 147-148

O

Oil, in Black Sea district, I, 136;
pipe line in Scotland, III, 286

Oil fields, in Persia, II, 175;
pipe line from Persian fields, II, 181

Okuma, Prime Minister of Japan, I, 199

_Olympia_, on coast of northern Russia, III, 286

Ostend, evacuated, I, 106

Ostend Harbor, blocking of, III, 111-118

Ourcq, valley of, III, 219-223;
Forty-second on, III, 253

Ovillers, taken by British, II, 82

P

Palestine, Campaign, II, 344-366

Papen, Captain von, plots of, II, 287-289

Pare Mountains, III, 39

_Patria_, attacked, II, 283

Peace, Allies refuse a peace by compromise, III, 155

Peace Treaty, with Austria, III, 366-374;
with Germany, III, 318-365

Pershing, General John J., offers army to Foch for Picardy battle,
III, 249;
report on American Army in Europe, III, 242-270;
sent to France, II, 339

Persia, British and Russian interests in, II, 174-176

_Persis_, sunk, II, 282

Petain, General, congratulates French at Verdun, II, 19;
uses 40,000 motor trucks, II, 17

Petrograd, refugees in, II, 116, 118-120

_Petrolite_, sunk, II, 282

Piave, Italians stand on, III, 99-100

Picardy, Battle of, III, 153-169;
fighting in Lens-Arras sector, III, 167;
French extend to join British at the Oise. III, 163;
German infantry advances, III, 162;
Germans bring divisions from Russia, III, 156;
Germans checked at Villers-Bretonneux, III, 164;
Germans take Albert, II, 164;
Germans take Messines Ridge, III, 167-168;
German objectives in the North, III, 168;
Montdidier falls, III, 164;
number of German divisions, III, 162;
opens, III, 153;
plan to drive through Amiens, III, 162;
Vimy and Notre Dame de Lorette, III, 166;
why attack was made here, III, 159-162

Plec Line, taken, III, 77

Plunkett, Rear Admiral, commands railway battery, III, 285-286

Poland, refugees from, II, 115

_President Lincoln_, torpedoed, III, 290-296

Press, German opinion misled, I, 23-24;
public opinion on peaceful settlement I, 15;
Serajevo tragedy, I, 10;
warning in New York papers, I, 284

Prince Heinrich