1. Men, whatever their pursuit or business, can live only in one of two ways: they can stay where they are, or they can go from one place to another. In the present state of the world, we generally do a little of both. There is some place--city, village, or farm--where we have our home and our work. But from time to time we go to other places, on visits or on business, or travel for a certain length of time to great distances and many places, for instruction and pleasure. Still, there is usually some place which we think of as home and to which we return. Wandering or roving is not our natural or permanent condition. But there are races for whom it is. The Bedouin Arabs are the principal and best known of such races. Who has not read with delight accounts of their wild life in the deserts of Arabia and Northern Africa, so full of adventure and romance,--of their wonderful, priceless horses who are to them as their own children,--of their noble qualities, bravery, hospitality, generosity, so strangely blended with love of booty and a passion for robbing expeditions? They are indeed a noble race, and it is not their choice, but their country which has made them robbers and rovers--Nomads, as such wandering races are called in history and geography. They cannot build cities on the sand of the desert, and the small patches of pasture and palm groves, kept fresh and green by solitary springs and called "oases," are too far apart, too distant from permanently peopled regions to admit of comfortable settlement. In the south of Arabia and along the sea-shore, where the land is fertile and inviting, they live much as other nations do, and when, a thousand years ago, Arabs conquered vast and wealthy countries both in Europe and Asia, and in Africa too, they not only became model husbandmen, but built some of the finest cities in the world, had wise and strictly enforced laws and took the lead in literature and science. Very different are the scattered nomadic tribes which still roam the steppes of Eastern Russia, of Siberia and Central Asia. They are not as gifted by far as the Arabs, yet would probably quickly settle down to farming, were it not that their wealth consists in flocks of sheep and studs of horses, which require the pasture yielded so abundantly by the grassy steppes, and with which they have to move from one place, when it is browsed bare, to another, and still another, carrying their felt-tents and simple utensils with them, living on the milk of their mares and the meat of their sheep. The Red Indian tribes of the far West present still another aspect of nomadic life--that of the hunter, fierce and entirely untamed, the simplest and wildest of all.