This sea, the depth of which has never been sounded, evokes by its origin and its mysterious aspect, the dolorous image of death. Situated about 690 feet below the level of the ocean, in the depression of the soil caused by the earthquake, its waters extend over an area of a hundred square leagues to the foot of the salt mountains and basaltic rocks which encircle it. One can detect no trace of vegetation or animal life; not a sound is heard upon its shores, impregnated with salt and bitumen; the birds avoid flying over its dreary surface from which emanate deadly effluvia, and nothing can exist in its bitter, salt, oily, and heavy waters. Not a breeze ever stirs the surface of this silent sea, nothing moves therein save the thick load of asphalt which now and again rises from the bottom to the surface and floats lazily on to the desolate strand. The Jordan has remained what it was in ancient times, the blessed stream, the vivifying artery of Palestine. Taking their source in the spotless snows and pure springs of Mount Hermon, its waters have retained the azure hues of the sky and the clearness of crystal. Before the catastrophe, the Jordan, after having traversed and fertilized Palestine, found its way into the Gulf of Arabia, but now, as upon the morrow of the shock which broke up its bed, its waters are lost in the somber abyss of the Dead Sea. The Bible mentions an earthquake in Palestine in the reign of Ahab, and one in the reign of Uzziah, which rent the temple. The latter was an event so great that the chroniclers of the time used it in dating occurrences, and Amos speaks of what happened "two years before the earthquake." The same convulsions of nature are mentioned many other times in the Bible, in connection with prophecy, revelation and the crucifixion. Nearly all writings about earthquakes prior to the last century tended to cultivate superstitious notions respecting them. Even Pliny, Herodotus, Livy, and the other classic writers, were quite ignorant of the true causes, and mythology entered into their speculations. In later times the investigation has become a science. The Chinese were pioneers in this direction, having appointed an Imperial Commission in A.D. 136 to inquire into the subject. It is to be doubted, however, if what they reported would be considered as of much scientific value to-day. By this time it is estimated that in the libraries of the world are more than 2,000 works treating of earth-motions. The phenomena are taken quite out of the realm of superstition. By means of delicate instruments of various kinds, called seismometers, the direction of earth-movements can be traced, and their force gauged, while by means of a simple magnet with a metal piece attached to it, an earthquake can be foretold. These instruments tell us that scarcely a day passes without an earthquake in some portion of the globe. The internal causes of these manifestations are ever active, whatever the causes may be. CHAPTER XXV.