11. The temple is raised on a platform exceptionally low--only a few feet above the level of the plain; the entire height, including the platform, was 156 feet in a perpendicular line. The stages--of which the four upper were lower than the first three--receded equally on three sides, but doubly as much on the fourth, probably in order to present a more imposing front from the plain, and an easier ascent. "The ornamentation of the edifice was chiefly by means of color. The seven Stages represented the Seven Spheres, in which moved, according to ancient Chaldean astronomy, the seven planets. To each planet fancy, partly grounding itself upon fact, had from of old assigned a peculiar tint or hue. The Sun (Shamash) was golden; the Moon (Sin or Nannar), silver; the distant Saturn (Adar), almost beyond the region of light, was black; Jupiter (Marduk) was orange; the fiery Mars (Nergal) was red; Venus (Ishtar) was a pale yellow; Mercury (Nebo or Nabu, whose shrine stood on the top stage), a deep blue. The seven stages of the tower gave a visible embodiment to these fancies. The basement stage, assigned to Saturn, was blackened by means of a coating of bitumen spread over the face of the masonry; the second stage, assigned to Jupiter, obtained the appropriate orange color by means of a facing of burnt bricks of that hue; the third stage, that of Mars, was made blood-red by the use of half-burnt bricks formed of a bright-red clay; the fourth stage, assigned to the Sun, appears to have been actually covered with thin plates of gold; the fifth, the stage of Venus, received a pale yellow tint from the employment of bricks of that hue; the sixth, the sphere of Mercury, was given an azure tint by vitrifaction, the whole stage having been subjected to an intense heat after it was erected, whereby the bricks composing it were converted into a mass of blue slag; the seventh stage, that of the moon, was probably, like the fourth, coated with actual plates of metal. Thus the building rose up in stripes of varied color, arranged almost as nature's cunning hand arranges hues in the rainbow, tones of red coming first, succeeded by a broad stripe of yellow, the yellow being followed by blue. Above this the glowing silvery summit melted into the bright sheen of the sky.... The Tower is to be regarded as fronting the north-east, the coolest side, and that least exposed to the sun's rays from the time that they become oppressive in Babylonia. On this side was the ascent, which consisted probably of a broad staircase extending along the whole front of the building. The side platforms, at any rate of the first and second stages, probably of all, were occupied by a series of chambers.... In these were doubtless lodged the priests and other attendants upon the temple service...." [Illustration: 70.--"ZIGGURAT" RESTORED. ACCORDING TO PROBABILITIES. (Perrot and Chipiez.)]