Western Front
Battle of the Somme: French I Corps advance southeast of Combles; VII Corps repulses heavy counter-attacks at Bouchavesnes.
Battle of Verdun: At citadel President Poincare confers Legion of Honour on the fortress ‘against whose walls the highest ambitions of Imperial Germany have broken’; Petain, Joffre, Nivelle and Mangin all present.

Southern Front
22 Italian Caproni bombers with Italian-built Nieuport fighter escort bomb Trieste.
Salonika: British 65th Brigade (22nd Division) storms German 59th Regiment’s Machukovo village salient, taking c.70 PoWs and 9 MGs for 586 casualties but loses it again until September 14.
French and Serbian troops in Macedonia attack on a 30-mile front against Bulgarian troops between Lake Ostrovo and Sorovitz.

Naval and Overseas Operations
East Africa: British occupy Mikindani (southernmost post in German East Africa).

Political, etc.
Germany: HINDENBURG ACHIEVES DE FACTO COMMAND OF CENTRAL POWERS’ ARMIES. OHL (German Supreme Forces Command) for the purpose becomes OKL (Supreme War Command).
Kaiser, Hindenburg, Bethmann, Enver and Tsar Ferdinand confer at Pless.
Australia: Melbourne: Mr. Hughes' bill, referendum for conscription in Australia, read first time.
Spain: Antonio Maura, former Spanish Premier and leader of the Conservatives, declares Spain must take sides in the war.

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On the kinkometer, my kink measures as a sine wave.