Antonius and Polykarp were now standing with their father before a large table, explaining to him a plan which they had worked out together and traced on the thin wax surface of a wooden tablet. The young architect's proposal was to bridge over a deep but narrow gorge, which the beasts of burden were obliged to avoid by making a wide circuit, and so to make a new way from the quarries to the sea, which should be shorter by a third than the old one. The cost of this structure would soon be recouped by the saving in labor, and with perfect certainty, if only the transport- ships were laden at Clysma with a profitable return freight of Alexandrian manufactures, instead of returning empty as they had hitherto done. Petrus, who could shine as a speaker in the council-meetings, in private life spoke but little. At each of his son's new projects he raised his eyes to the speaker's face, as if to see whether the young man had not lost his wits, while his mouth, only half hidden by his grey beard, smiled approvingly. When Antonius began to unfold his plan for remedying the inconvenience of the ravine that impeded the way, the senator muttered, "Only get feathers to grow on the slaves, and turn the black ones into ravens and the white ones into gulls, and then they might fly across. What do not people learn in the metropolis!" When he heard the word 'bridge' he stared at the young artist. "The only question," said he, "is whether Heaven will lend us a rainbow." But when Polykarp proposed to get some cedar trunks from Syria through his friend in Alexandria, and when his elder son explained his drawings of the arch with which he promised to span the gorge and make it strong and safe, he followed their words with attention; at the same time he knit his eyebrows as gloomily and looked as stern as if he were listening to some narrative of crime. Still, he let them speak on to the end, and though at first he only muttered that it was mere "fancy-work" or "Aye, indeed, if I were the emperor;" he afterwards asked clear and precise questions, to which he received positive and well considered answers. Antonius proved by figures that the profit on the delivery of material for the Caesareum only would cover more than three quarters of the outlay. Then Polykarp began to speak and declared that the granite of the Holy Mountain was finer in color and in larger blocks than that from Syene. "We work cheaper here than at the Cataract," interrupted Antonius. "And the transport of the blocks will not come too dear when we have the bridge and command the road to the sea, and avail ourselves of the canal of Trajan, which joins the Nile to the Red Sea, and which in a few months will again be navigable."