Afternoon: Goschen is back in Berlin from London and calls on Jagow to formally submit Grey’s conference proposal. Jagow says a conference is tantamount to a “court of arbitration” and Austria-Hungary will not accept that.
Jagow repeats his warning that Germany must respond to a Russian mobilisation but as with Cambon he qualifies it saying “if Russia only mobilises in the south [i.e. against Austria-Hungary only] Germany will not mobilise”.
He adds that the Russian system is so complicated it might be difficult to judge what is happening and Germany cannot allow Russia to gain a head start.