Another class of phenomena of this kind relates to the great battles that have at times decided the fate of the world. Thus Pausanias already tells us ("Attica," 32), and so do other historians of Greece, how the Plain of Marathon resounded for nearly four centuries every year with the clash of arms and the cries of soldiers. It was evidently the deep and lasting impression made upon a highly sensitive nation, which here was bequeathed from generation to generation, and on the day of the battle, when all was excitement, resulted in the perception of sounds which had no real existence. Events of such colossal proportions, which determine in a few hours the fate of great nations, leave naturally a powerful impress upon contemporaries not only, but also upon the children of that race. Such was, among others, the fearful battle on the Catalaunian Fields, in which the Visi-Goths and Aetius conquered Attila, and one hundred and sixty-two thousand warriors were slain. It was at the time reported that the intense bitterness and exasperation of the armies continued even after the battle, and that for three days the spirits of the fallen were contending with each other with unabated fury. The report grew into a legend, till a firm belief was established that the battle was fought year after year on the memorable day, and that any visitor might behold the passionate spirits as they rose from their graves, armed with their ancient weapons and filled with undiminished fury. One by one the soldiers of the two armies, it was said, leave their lowly graves, rise high into the air, and engage in deadly but silent strife, till they vanish in the clouds. It is well known how successfully the great German painter, Kaulbach, has reproduced the vision in his magnificent fresco of the "Hunnenschlacht." In other countries these ghostly visions assume different forms. Thus the neighborhood of Kerope, in Livonia, is in like manner renowned for a long series of fearful butcheries during the wars between the German knights and the Muscovites. There also, night after night, the shadowy battle is fought over again; but the clashing of arms and the hoarse war-cries are distinctly heard, and the pious traveler hastens away from the blood-soaked plains, uttering his prayers for the souls of the slain. In the Highlands of Scotland also, and on the adjoining islands, most weird and gruesome sights have been watched by young and old in every generation. The dark, dismal atmosphere of those regions, the dense fogs and impenetrable mists, now rising from the sea, and now descending from the mountains, and the fierce, inclement climate, have all combined for ages to predispose the mind for the perception of such strange and mysterious phenomena. Nearly every clan and every family has its own particular ghost, and besides these the whole nation claims a number of common visions and prophetic spirits, whose harps and wild songs are heard faintly and fearfully sounding on high.