The body of the Integral is almost ready; it is an exquisite, oblong ellipsoid, made of our glass, which is everlasting like gold and flexible like steel. I watched them within, fixing its transverse ribs and its longitudinal stringers; in the stern they were erecting the base of the gigantic motor. Every three seconds the powerful tail of the Integral will eject flame and gasses into the universal space, and the Integral will soar forward and higher⁠—like a flaming Tamerlane of happiness! I watched how the workers, true to the Taylor system, would bend down, then unbend and turn around swiftly and rhythmically like levers of an enormous engine. In their hands they held glittering glass pipes which emitted bluish streaks of flame; the glass walls were being cut into with flame; with flame there were being welded the angles, the ribs, the bars. I watched the monstrous glass cranes easily rolling over the glass rails; like the workers themselves they would obediently turn, bend down and bring their loads inward into the bowels of the