As regards the internal circumstances on which the progress of the mining industry depends, these are the employment of the most improved methods and means of production. They comprise the most perfected machinery and appliances, and the latest processes of metallurgical and chemical science. Speaking generally, it may be said that on the Rand at the present time are employed the most up-to-date skill and technical knowledge, and the latest devised mechanical appliances. This, by the way, is only true of individual mines however. The equipment of the mass varies greatly, and necessarily so, since the conditions of one mine differ vastly from those of its neighbour; and distant and even contiguous localities require unlike treatment, according to the nature of the ore or reef worked and other local conditions. The improvement effected hitherto is evidence, however, of the initiation and energy which have been displayed by the heads of the mining industry in the past, and an earnest for the future, while the progress achieved abides as an invaluable guide for all future mining operations in like geological formations. The knowledge of how best to treat the peculiarities of the banket reef has, however, only been slowly gained, and at the cost of much money and many unavoidable blunders. For instance, the only metallurgical operation for the extraction of gold employed up to 1889 was the stamping mill, and fine gold and amalgam were necessarily abundant in the tailings which were cast away on the spoil heap. The cyanide process, and that of the treatment of slimes, were only applied in 1891 and 1898 respectively. Their use has added millions to the yearly output of gold. The amalgamation process, the chlorination treatment of concentrates, and the use of frue vanners are other innovations gradually introduced as results of experiment and experience, and which have likewise increased the efficacy of the extractive operations. Similar progress has been shown in the improvement effected in the mechanical equipment. At first the mining operations were confined to the primitive digging of a huge trench over the site of the outcrop, with the simplest delver's tools furnished by the locality. This method has advanced to the stage of sinking shafts to the enormous depth of a mile into the bowels of the earth, equipped with the most elaborate hoisting plant, with underground equipment lit and worked by electricity, and the complementary surface establishments, at a cost running into hundreds of thousands of pounds. There yet lies before the industry the general adoption, not only of these but of other improvements which experience has shown to be desirable, such as the practice of sorting of ore, the use of heavier batteries on the score of greater economy, &c., and their utilisation is merely a question of time. As, therefore, all these improvements and betterments have been successively made, and the mining industry is only now gradually--it is