river Euphrates to overflow its banks in the months of June, July, and August, two artificial canals were cut, some distance above the city, which turned the course of these waters into the Tigris before they reached Babylon. To keep the river within its channel, they raised immense artificial banks on both sides, built with bricks cemented with bitumen. In making these works it was necessary to turn the course of the river another way. For this purpose a prodigious artificial lake was dug, forty miles square, one hundred and sixty in circumference, and thirty-five feet deep. [Illustration: CHART OF THE COUNTRY AROUND BABYLON.] Into this lake the whole river was turned by an artificial canal, cut from the west side of it, until the entire work was finished, when the river was allowed to flow into its former channel. This lake was kept, however, as a reservoir, as a means of irrigating the surrounding fields. Along the banks of the river were the famous Hanging Gardens, where the many terraces bloomed with brilliant flowers, and were shaded by groves of trees, and cooled by fountains of sparkling water. These beautiful gardens, which were considered one of the Seven Wonders of the World, were constructed by Nebuchadnezzar to please his wife Amytis, whose native land was Media, as she was the daughter of Astyages. Surrounded by a triple wall, and guarded by gates of brass, rose the magnificent royal palace, whose walls were adorned by pictures of the chase, and martial and festive processions, and whose apartments were furnished with the rich carpets of Persia, the costly fabrics of Damascus, and the jewels of Bokhara. Rising above all the other structures was the lofty Tower of Belus, or Babel. The tower was six hundred feet high, and was crowned with a statue of Belus, forty feet high, made of pure gold, which shone resplendent in the sunlight, or gleamed with matchless beauty in the soft moonlight. It is said that this tower far exceeded the greatest pyramid of Egypt in height. The ascent to the top was by stairs round the outside of it; and as the tower proper was composed of eight stories, each decreasing gradually in size, the entire tower formed a pyramid. In the different stories were many rooms, which were richly adorned with tables, censers, cups, and other sacred vessels of massive gold. Diodorus, one of the ancient historians, estimates the value of the riches contained in this temple to amount to $93,240,000. This temple stood in the time of Xerxes, but on his return from his Grecian expedition, he entirely destroyed it, having plundered it of all its immense treasures. Alexander the Great purposed to rebuild it, and employed ten thousand men to remove the rubbish which had accumulated around it, but after they had labored two months, Alexander died, and that put an end to the undertaking.