"The ceilings above him were divided into square compartments, painted with flowers, or with the figures of animals. Some were inlaid with ivory, each compartment being surrounded by elegant borders and mouldings. The beams as well as the sides of the chambers, may have been gilded, or even plated, with gold and silver; and the rarest woods, in which the cedar was conspicuous, were used for the wood work. Square openings in the ceilings of the chambers admitted the light of day. A pleasing shadow was thrown over the sculptured walls, and gave a majestic expression to the human features of the colossal figures which guarded the entrances. Through these apertures was seen the bright blue of an eastern sky, enclosed in a frame on which were painted, in varied colors, the winged circle, in the midst of elegant ornaments, and the graceful forms of ideal animals. "These edifices, as it has been shown, were great national monuments, upon the walls of which were represented in sculpture, or inscribed in alphabetic characters, the chronicles of the empire. He who entered them might thus read the history, and learn the glory and triumphs of the nation. They served at the same time to bring continually to the remembrance of those who assembled within them on festive occasions, or for the celebration of religious ceremonies, the deeds of their ancestors, and the power and majesty of their gods."--_Layard's Nineveh and its Remains_, vol. II. p 262. ORIGIN AND ANTIQUITY OF THE ARCH. The origin of the Arch is very uncertain. It was unknown to the Egyptians, for their chambers were roofed with long flat stones, and sometimes the upper layers of stones form projections, so as to diminish the roof surface. It is also supposed that it was unknown to the Greeks, when they constructed their most beautiful temples, in the 5th, 4th, and 3d centuries B. C., as no structure answering to the true character of the Arch has been found in any of these works. Minutoli has given specimens of arches at Thebes; circular, and formed of four courses of bricks, and it is maintained that these belonged to a very ancient period, long before the Greek occupancy of that country. The Macedonians were a civilized people long before the rest of the Greeks, and were, in fact, their instructors; but the Greeks afterwards so far excelled them that they regarded them as barbarians. Some say that Etruria was the true birth-place of the Arch; it was doubtless from them that the Romans learned its use. Tarquinius Priscus conquered the Etrurians, and he it was who first introduced and employed the Arch in the construction of the cloacae, or sewers of Rome. The _cloaca maxima_, or principal branch, received numerous other branches between the Capitoline, Palatine, and Quirinal hills. It is formed of three consecutive rows of large stones piled above each other without cement, and has stood nearly 2,500 years, surviving without injury the