It will be remarked, that this somewhat unfavourable report is made at the end of the first six months of the gold-fever. That kind of gold-seeking, however, which unsettles the habits of a population, and represses the other pursuits of industry, is not likely to endure very long in any country. It must give way in time to scientific mining, which is as legitimate a business as any other, and which, by the wealth it circulates, will tempt men into new avenues of industry, and recruit, to any extent that may be desirable, the supply of labour. Hitherto that supply has come in inadequate quantities, or from polluted sources; but we have now precisely what the colony wanted--a stream of voluntary emigration, which, in the process of time, when skilled labour only can be employed, will flood the diggings, and its superfluous portions find their level in the other employments afforded by the country. That this will take place without the inconvenience of a transition period, is not to be expected; but, upon the whole, we look upon the present depression of the legitimate trade of the colony as merely a temporary evil, arising out of circumstances that are destined to work well for its eventual prosperity. The same process, it should be observed, has already been gone through in California. The lawless adventurers who rushed to the gold-fields from all parts of the world subsided gradually into order from mere motives of self-preservation; and as the precious metal disappeared from the surface, multitudes were driven by necessity or policy into employments more remunerative than digging. The large mining population--the producers of gold--became the consumers of goods; markets of all kinds were opened for their supply; emporia of trade rose along the coast; and a country that so recently was almost a desert, now promises to become one of the great marts of the commerce of the world. If this has been the case in California, the process will be much easier in Australia, where the rudiments of various businesses already exist, and where the staple articles of produce are such as can hardly be pushed to a superfluous extent.