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Show 28 STEPPES AND DESERTS. Steppes in the temperate zone arc characterized by the great height attained by flowering herbaceous plants, Saussureas and other Synantherre, and Papilionacero, especially a host of species of Astragalus. In traversing pathless portions of these Steppes, the traveller, seated in the low Tartar carriages, sees the thickly crowded plants bend beneath the wheels, but without rising up cannot look around him to see the direction in which he is moving. Some of the Asiatic Steppes are grassy plains; others are covered with succulent, evergreen, articulated soda plants : many glisten from a distance with flakes of exuded salt, which cover the clayey soil, not unlike in appearance to fresh fallen snow. These Mongolian and Tartarian Steppes, interrupted frequently by mountainous features, divide the very ancient civilization of Thibet and Hindostan from the rude nations of Northern Asia. They have in various ways exercised an important influence on the changeful destinies of man. They have compressed the population towards the south, and have tended, more than the Himalaya, or than the snowy mountains of Srinagur and Gborka, to impede the intercourse of nations, and to place permanent limits to the extension of milder manners, and of artistic and intellectual cultivation in Northern Asia. But, in the history of the past, it is not alone as an opposing barrier that we must regard the plains of Central Asia: more than once they have proved the source from whence devastation has spread over distant lands. The pastoral nations of these Steppes-Moguls, Getre, Alani, and Usuni-have shaken the world. As, in the course of past ages, early intellectual culture bas come like the cheering light of the sun from the East, so, at a later period, from the same direction barbaric rudeness has threatened to overspread and involve Europe in darkness. A brown pastoral race, e~) of Tukiuish or Turkish descent, the Hiongnu, dwelling in tents of skins, inhabited the elevated Steppe of Gobi. Long terrible to the Chinese power, a part of this tribe was driven back into Central Asia. The shock or impulse thus given passed from nation to nation, until it reached the ancient land of the Finns, near the Ural mountains. From thence, Huns, Avari, Ghazar~s, and various admixtures of Asiatic races, broke forth. Armies of Huns appeared successively on the Volga, |