But beyond them, and of infinitely more importance, there was one fact which dominated the situation and retarded the crisis. A burgher cannot go to war without his horse, his horse cannot move without grass, grass will not come until after rain, and it was still some weeks before the rain would be due. Negotiations, then, must not be unduly hurried while the veldt was a bare russet-coloured dust-swept plain. Mr. Chamberlain and the British public waited week after week for an answer. But there was a limit to their patience, and it was reached on August 26, when the Colonial Secretary showed, with a plainness of speech which is as unusual as it is welcome in diplomacy, that the question could not be hung up for ever. 'The sands are running down in the glass,' said he. 'If they run out we shall not hold ourselves limited by that which we have already offered, but, having taken the matter in hand, we will not let it go until we have secured conditions which once for all shall establish which is the paramount power in South Africa, and shall secure for our fellow-subjects there those equal rights and equal privileges which were promised them by President Kruger when the independence of the Transvaal was granted by the Queen, and which is the least that in justice ought to be accorded them.' Lord Salisbury, a short time before, had been equally emphatic: 'No one in this country wishes to disturb the conventions so long as it is recognised that while they guarantee the independence of the Transvaal on the one side, they guarantee equal political and civil rights for settlers of all nationalities upon the other. But these conventions are not like the laws of the Medes and the Persians. They are mortal, they can be destroyed ... and once destroyed they can never be reconstructed in the same shape.' The long-enduring patience of Great Britain was beginning to show signs of giving way. Pressure was in the meanwhile being put upon the old President and upon his advisers, if he can be said ever to have had any advisers, in order to induce him to accept the British offer of a joint committee of inquiry. Sir Henry de Villiers, representing the highest Africander opinion of the Cape, wrote strongly pleading the cause of peace, and urging Mr. Fischer of the Free State to endeavour to give a more friendly tone to the negotiations. 'Try to induce President Kruger to meet Mr. Chamberlain in a friendly way, and remove all the causes of unrest which have disturbed this unhappy country for so many years.' Similar advice came from Europe. The Dutch minister telegraphed as follows: '_August 4, 1899._--Communicate confidentially to the President that, having heard from the Transvaal Minister the English proposal of the International Commission, I recommend the President, in the interest of the country, not peremptorily to refuse that proposition.'