The succinct account of the natural history of China given by Sir John Davis in 1836, contained nearly all the popular notices of much value then known, and need not be repeated, while summarizing the items derived from other and later sources. Malte-Brun observed long ago, “That of even the more general, and, according to the usual estimate, the more important features of that vast sovereignty, we owe whatever knowledge we have obtained to some ambassadors who have seen the courts and the great roads--to certain merchants who have inhabited a suburb of a frontier town--and to several missionaries who, generally more credulous than discriminating, have contrived to penetrate in various directions into the interior.” The volumes upon China in the Edinburgh Cabinet Library contain the best digest of what was known forty years since on this subject. The botanical collections of Robert Fortune in 1844-1849, and those of Col. Champion at Hongkong, have been studied by Bentham, while the later researches of Hance, Bunge and Maximowitch have brought many new forms to notice. In geology, Pumpelly, Kingsmill, Bickmore, and Baron Richthofen have greatly enlarged and certified our knowledge by their travels and memoirs; while Père David, Col. Prejevalsky, Swinhoe, Stimpson, and Sir John Richardson have added hundreds of new species to the scientific fauna of the Empire. ~GEOLOGICAL FORMATIONS.~ Personal investigation is particularly necessary in all that relates to the geology and fossils of a country, and the knowledge possessed on these heads is, it must be conceded, still meagre, though now sufficient to convey a general idea of the formations, deposits, and contents of the mountains and mines, as well as the agencies at work in modifying the surface of this land. The descriptions and observed facts recorded in native books may furnish valuable hints when they can be compared with the places and productions, for at present the difficulty of explaining terms used, and understanding the processes described, render these treatises hard to translate. The empirical character of Chinese science compels a careful sifting of all its facts and speculations by comparisons with nature, while the amount of real information contained in medical, topographical, and itinerant works render them always worth examining. Large regions still await careful examination in every part of the Empire; and it will be well for the Chinese Government if no tempting metallic deposits are found to test its strength to protect and work them for its own benefit. But in mere science it cannot be doubted that so peculiar a part of the world as the plateau of Central Asia will, when thoroughly examined, solve many problems relating to geology, and disclose many important facts to illustrate the obscure phenomena of other parts of the world.