The 'Devil's Bridges,' to which Mephistopheles alludes so proudly, are frequent in Germany, and most of them, whether natural or artificial, have diabolical associations. The oldest structures often have legends in which are reflected the conditions exacted by evil powers, of those who spanned the fords in which men had often been drowned. Of this class is the Montafon Bridge in the Tyrol, and another is the bridge at Ratisbon. The legend of the latter is a fair specimen of those which generally haunt these ancient structures. Its architect was apprentice to a master who was building the cathedral, and laid a wager that he would bridge the Danube before the other laid the coping-stone of the sacred edifice. But the work of bridging the river was hard, and after repeated failures the apprentice began to swear, and wished the devil had charge of the business! Whereupon he of the cloven foot appeared in guise of a friar, and agreed to build the fifteen arches--for a consideration. The fee was to be the first three that crossed the bridge. The cunning apprentice contrived that these three should not be human, but a dog, a cock, and a hen. The devil, in wrath at the fraud, tore the animals to pieces and disappeared; a procession of monks passed over the bridge and made it safe; and thereon are carved figures of the three animals. In most of the stories it is a goat which is sent over and mangled, that poor animal having preserved its character as scape-goat in a great deal of the Folklore of Christendom. The Danube was of old regarded as under the special guardianship of the Prince of Darkness, who used to make great efforts to obstruct the Crusaders voyaging down it to rescue the Holy Land from pagans. On one occasion, near the confluence of the Vilz and Danube, he began hurling huge rocks into the river-bed from the cliffs; the holy warriors resisted successfully by signing the cross and singing an anthem, but the huge stone first thrown caused a whirl and swell in that part of the river, which were very dangerous until it was removed by engineers.