some scanty ledge, with cliffs rising above them and sinking down abruptly below them, the very 'congesta manu præruptis oppida saxis' of Virgil's description, which he even then called 'antique walls,' because they had been the strongholds of the primæval inhabitants of the country, and which are still inhabited after a lapse of so many centuries, nothing of the stir and movement of other parts of Europe having penetrated into these lonely valleys, and tempted the people to quit their mountain fastnesses for a more accessible dwelling in the plain. "I have been led on further than I intended, but I wished to give an example of what I meant by a real and lively knowledge of geography, which brings the whole character of a country before our eyes, and enables us to understand its influence upon the social and political condition of its inhabitants. And this knowledge, as I said before, is very important to enable us to follow clearly the external revolutions of different nations, which we want to comprehend before we penetrate to what has been passing within." This introductory discussion is followed by a rapid sketch of the different struggles for power and independence in Europe during the three last centuries. The general tendency of this period has been to consolidate severed nations into great kingdoms; but this tendency has been checked when the growth of any single power has become excessive, by the combined efforts of other European nations. Spain, France, England, and Austria, all in their turns have excited the jealousy of their neighbours, and have been attacked by their confederate strength. But in 1793 the peace of Europe was assailed by an enemy still more dangerous and energetic--still more destructive--we doubt whether in the English language a more vivid description is to be found of the evil, its progress, and its termination, than Dr Arnold has given in the following passage:--