Moreover, the advent of population enhances the value of both public and private estates, while the maintenance of great public works like railways involves in most cases a heavy revenue loss for years after the lines are open for traffic. Only in very recent times have our railway earnings approximated, after payment of working charges and maintenance, to the amount of the interest charge upon the capital invested in them; but they have immensely benefited the country by providing facilities for internal transport, and by enhancing the value of the land, Crown and other, which they intersect and make accessible. Years ago, when the railway debt of Queensland stood at about 17 millions, an official estimate showed that, in making good the annual deficiency of interest and working expenses on the various open lines, at least as much had been spent by the Treasury as the entire first cost of their construction. So that contemporary colonists have still a charge against posterity for public works to be handed down, even though the first cost remains a liability in the form of interest upon inscribed stock held by the public creditor. Further, it has to be said that, since the railways have begun nearly to defray interest upon capital, the auction sale of Crown land, except in small areas, has practically ceased. The receipts from auction sales in 1907-8 totalled only L33,391, and much of that sum would be absorbed were it charged with its share of the cost of administration. By the Land Sales Proceeds Act of 1906, all moneys received in payment for land sold under the authority of Part VI. of the Land Act of 1897--by auction sales of town, suburban, and country lands, or of such lands sold by selection after having been so offered--must be paid into the Loan Fund Account, and be applied to defraying the cost of such works as Parliament may from time to time determine shall be executed out of moneys standing to the credit of that fund. True, receipts for lands sold under the Special Sales of Land Act of 1901, being applied to the special purpose of retiring Treasury bills issued to make good revenue deficits, are excluded from the general law in this respect. But it is satisfactory that, even though the recognition of the principle that land is capital and not revenue has been tardy, it has now in Queensland the full force of statute law. As to the past, it has been argued with much reason that small areas alienated were for farming purposes, and soon became far more valuable than when held for grazing purposes by tenants of the Crown. As to the future, what Parliament seems determined to guard against by every possible means is the alienation of large areas of the public domain to persons who will use the land for speculative purposes, or who by locking it up will seek to check the wave of closer settlement which it is obviously in the best interests of the State to foster and stimulate.