Under the superintendence of Archimedes was also built the renowned galley for Hiero. It was constructed to half its height, by three hundred master workmen and their servants, in six months. Hiero then directed that the vessel should be perfected afloat; but how to get the vast pile into the water the builders knew not, till Archimedes invented his engine called the helix, by which, with the assistance of very few hands he drew the ship into the sea, where it was completed in six months. The ship consumed wood enough to build sixty large galleys; it had twenty tiers of bars and three decks; the middle deck had on each side fifteen dining apartments besides other chambers, luxuriously furnished, and floors paved with mosaics of the story of the "Iliad." On the upper deck were gardens with arbors of ivy and vines; and here was a temple of Venus, paved with agates, and roofed with Cyprus-wood; it was richly adorned with pictures and statues, and furnished with couches and drinking-vessels. Adjoining was an apartment of box-wood, with a clock in the ceiling, in imitation of the great dial of Syracuse; and here was a huge bath set with gems called Tauromenites. There were also on each side of this deck, cabins for the marine soldiers, and twenty stables for horses; in the forecastle was a fresh-water cistern which held 253 hogsheads; and near it was a large tank of sea-water, in which fish were kept. From the ship's sides projected ovens, kitchens, mills, and other offices, built upon beams, each supported by a carved image nine feet high. Around the deck were eight wooden towers, from each of which was raised a breastwork full of loopholes, whence an enemy might be annoyed with stones each tower being guarded by four armed soldiers and two archers. On this upper deck was also placed the machine invented by Archimedes to fling stones of 300 pounds weight and darts eighteen feet long, to the distance of 120 paces; while each of the three masts had two engines for throwing stones. The ship was furnished with four anchors of wood and eight of iron; and "the water-screw" of Archimedes, already mentioned, was used instead of a pump for the vast ship; "by the help of which one man might easily and speedily drain out the water, though it were very deep." The whole ship's company consisted of an immense multitude, there being in the forecastle alone 600 seamen. There were placed on board her 60,000 bushels of corn, 10,000 barrels of salt fish, and 20,000 barrels of flesh, besides the provisions for her company. She was first called the Syracuse, but afterward the Alexandria. The builder was Archias, the Corinthian shipwright. The vessel appears to have been armed for war and sumptuously fitted for a pleasure-yacht, yet was ultimately used to carry corn. The timber for the main mast, after being in vain sought for in Italy, was brought from England. The dimensions are not recorded, but they must have exceeded