We have been so much accustomed to regard the Austrian empire as one German nation, that we sometimes forget of how many separate kingdoms and principalities it consists, and of how many different and disunited races its population is composed. It may not, therefore, be unnecessary to recall attention to the fact that the Austrian dominions of the last three hundred years--the Austrian empire of our times--consists of three kingdoms and many minor principalities, inhabited by five distinct races, whose native tongues are unintelligible to each other, and who have no common language in which they can communicate; who are divided by religious differences; who preserve their distinctive characteristics, customs, and feelings; whose sentiments are mutually unfriendly, and who are, to this day, unmixed in blood. The Germans, the Italians, the Majjars or Hungarians, the Sclaves, and the Wallacks, are distinct and alien races--without community of origin, of language, of religion, or of sentiments. Except the memory of triumphs and disasters common to them all, their allegiance to one sovereign is now, as it was three centuries ago, the only bond that unites them. Yet, in all the vicissitudes of fortune--some of them disastrous--which this empire has survived, these nations and races have held together. The inference is inevitable--whatever may have been its defects, that form of government could not have been altogether unfit for its purposes, which so many different kingdoms and races united to support and maintain.