In 1884 a deputation from the Transvaal visited England, and at their solicitation the clumsy Treaty of Pretoria was altered into the still more clumsy Convention of London. The changes in the provisions were all in favour of the Boers, and a second successful war could hardly have given them more than Lord Derby handed them in time of peace. Their style was altered from the Transvaal to the South African Republic, a change which was ominously suggestive of expansion in the future. The control of Great Britain over their foreign policy was also relaxed, though a power of veto was retained. But the most important thing of all, and the fruitful cause of future trouble, lay in an omission. A suzerainty is a vague term, but in politics, as in theology, the more nebulous a thing is the more does it excite the imagination and the passions of men. This suzerainty was declared in the preamble of the first treaty, and no mention of it was made in the second. Was it thereby abrogated or was it not? The British contention is that only the articles were changed, and that the preamble continued to hold good for both treaties. They point out that not only the suzerainty, but also the independence, of the Transvaal is proclaimed in that preamble, and that if one lapses the other must do so also. On the other hand, the Boers point to the fact that there is actually a preamble to the second convention, which would seem, therefore, to take the place of the first. As a matter of fact, the discussion is a barren one, since both parties agree that Great Britain retained certain rights over the making of treaties by the Republic, which rights place her in a different position to an entirely independent state. Whether this difference amounts to a suzerainty or not is a subject for the academic discussion of international jurists. What is of importance is the fact, not the word. CHAPTER II THE CAUSE OF QUARREL Gold had been known to exist in the Transvaal before, but it was only in 1886 that it was realised that the deposits which lie some thirty miles south of the capital are of a very extraordinary and valuable nature. The proportion of gold in the quartz is not particularly high, nor are the veins of a remarkable thickness, but the peculiarity of the Rand mines lies in the fact that throughout this 'banket' formation the metal is so uniformly distributed that the enterprise can claim a certainty which is not usually associated with the industry. It is quarrying rather than mining. Add to this that the reefs which were originally worked as outcrops have now been traced to enormous depths, and present the same features as those at the surface. A conservative estimate of the value of the gold has placed it at seven hundred millions of pounds.