PREFACE (extract): The rapid progress of mining in Queensland, and the efforts that are still being made toward a further advance in gold-production, render a work upon the Goldfields of Queensland specially attractive ; and the attempts of the author to bring into a small compass an historical, geological, and descriptive account of the mineral resources of the colony will be appreciated, not only by mining men who are ever anxious to learn the whereabouts of the precious metal and to whom the ends of the earth are the only limits to mining, but also to the many who are interested in the colony's early history and its subsequent progress and development. The mineral districts of Queensland are of great extent, and stored with wealth ; and, given capital and good management, combined with scientific methods of treating the vast lodes which lie almost unworked, the mines at the various centres will rapidly win for themselves foremost names in the mining world. These opportunities to practical mining men exist upon every hand in Queensland. Upon many of the mines, pot-holes," or shafts worked by whip or whim, are the chief methods of mining, and consequently no great depth has been reached ; and though many of the reefs have proved rich at shallow depths, the stone perhaps has become poorer, or maybe water has come in to such an extent that, without proper pumping appliances, it would be impossible to cope with it. Oftentimes the rich stone has been simply fossicked out," and the money obtained squandered, so that when a blank came in, no capital for further development was available ; from these reasons scores of good mines are lying idle in the colony. Upon other fields the ore is of so complex a nature that special treatment is required, thus offering pronounced inducements to metallurgical engineers.