But if the Baltic is at a disadvantage compared with the Mediterranean in climate as well as in size, it is not inferior in wealth and variety of its produce. Mighty rivers, watering many lands discharge themselves into its bosom, and produce upon their banks rich and needful products, such as wheat and wool. In the earth are hidden costly metallic treasures, while the sea itself is a well of opulence from the number and diversity of the fish that breed in its waters. It has been well said that since the days of the Hansa, possession of the Baltic and dominion of the sea are synonymous terms. The Hansa, the Dutch, and the English have necessarily played the first _rôle_ in the Baltic trade. But the trade dates from an even earlier time. Thanks to coins accidently dropped, and after long years unearthed, we learn that by way of the Volga the Northmen brought to their distant home the treasures of the far East--spices, pearls, silks, furs, and linen garments; and that following the course of the Dwina, the Dnieper, and the Oder, they found their way to Constantinople, the Black Sea, and even the Caspian. Canon Adam, of Bremen, a chronicler of the eleventh century, in one of those farragoes of fact and fiction in which our forefathers read history, tells of a great trading city at the month of the Oder, "Julin, the greatest town of heathen Europe."[2] "It is a famed meeting-place for the barbarians and Greeks[3] of the neighbourhood, inhabited by Slavs and other barbarians. Saxons, too, may live there if they do not declare themselves Christians; for the town is rich in the wares of all Eastern peoples, and contains much that is charming and precious." This town of Winetha, of whose exact site we are no longer sure, since it has been destroyed by the encroachment of the Baltic, was, and is still, a favourite theme of song and legend with German writers. It is fabled that it was destroyed like Sodom and Gomorrha, because of its sins; for its inhabitants had grown hard and proud and disdainful, trusting in wealth, and despising God. On fine and calm days mariners can, it is said, behold the city, with its silver ramparts, its marble columns, its stirring, richly-dressed population, leading, beneath the ocean, the life which they led while their city was still on firm ground. Every Good Friday this splendid city, with its towers, palaces, and walls, is permitted to rise from the ocean, and sun itself in the daylight, to be again submerged on Easter Day, by this annual fall recalling to all who might else forget it the severe justice of God.