The lamp-maker must have been, however, in great request. Metals were often employed in the structure of lamps. The one commonly used in Cairo is of palm-tree wood; the glass that hangs in the middle is half-filled with water, and has oil on the top, about three fingers in depth. The wick is preserved dry at the bottom of the glass, and ascends through a pipe. Such Lamps are very convenient, from their being easily removed from place to place. And here we are reminded of a valuable substance not yet noticed. According to Pliny, some storm-beaten mariners were boiling their food at the mouth of the river Belus—a small stream running from the foot of Mount Carmel—where the herb kali was growing abundantly, when they perceived that the sand—when incorporated with the ashes of the plant—melted, and ran into a vitreous substance. Nor is the supposition unnatural; for the sand at this place was well adapted to the manufacture of glass; and it is scarcely possible to produce a fire of sufficient heat for metallurgical operations without vitrefying part of the bricks or stones of the furnace. Strabo and Josephus alike supported the statement of Pliny, and probably from the spot referred to, the material was obtained that was used in the glass-works of Tyre and Sidon. At Beni Hassan, glass-blowers are represented at work: glazed pottery was used by the Egyptians; they also made glass bugles and beads for necklaces, and a sort of network with which they covered the wrappers of mummies, so as to form by their various hues numerous devices and figures, resembling those that are made in our bead-purses. The chief articles of that people were, however, bottles, vases, and other utensils, though they must have had great skill in the manufacture of glass, as they counterfeited amethysts, emeralds, and other precious stones, and were practiced in cutting glass and gems. A pane of glass, and numerous fragments of broken glass bottles were discovered on the excavation of the city of Pompeii. And Mr. Layard has found that the people of Nineveh had also acquired the art of making glass. Several small bottles, or vases—of elegant shape—in this material, were found at Nimroud and Kouyunjik. One bears the name of the Khorsabad king. The gems and cylinders still frequently found in ruins, prove that the Assyrians were also very skillful in engraving on stone. Not very long after the rise of the arts we discover the practice of working in gold. The golden ear-ring presented by Abraham’s steward to Rebekah weighed half a shekel, and the two bracelets for her hands were ten shekels’ weight of gold. The ark of the covenant, though made of wood, was to be overlaid with pure gold, within and without. It was also to have a crown of gold round about, and rings of gold in the four corners. Even the staves were to be overlaid with gold. Similar directions were given as to the table of shewbread and the altar of incense. And Solomon garnished the house of the Lord with gold.