It is only from the Scriptures, and from fragmentary allusions in the writings of profane historians and poets, that we can derive any knowledge of the vessels employed by the ancients. Doubtless our first parents noticed branches of trees or fragments of wood floating upon the surface of that “river” which “went out of Eden to water the garden;” and from this to the use of logs singly, or combined in rafts, or hollowed into canoes, would be an easy transition. The first boat was probably a mere toy model; and, likely enough, great was the surprise when it was discovered that its sides, though thin, would support a considerable weight in the water. The first specimen of naval architecture of which we have any description is unquestionably the ark, built by Noah. If the cubit be taken as eighteen inches, she was 450 feet long, 75 in breadth, and 45 in depth, whilst her tonnage, according to the present system of admeasurement, would be about 15,000 tons. It is more than probable that this huge vessel was, after all, little more than a raft, or barge, with a stupenduous house reared over it, for it was constructed merely for the purpose of floating, and needed no means of propulsion. She may have been, comparatively speaking, slightly built in her lofty upper works, her carrying capacity being thereby largely increased. Soon after the Flood, if not, indeed, before it, other means of flotation must have suggested themselves, such as the inflated skins of animals; these may be seen on the ancient monuments of Assyria, discovered by Layard, where there are many representations of people crossing rivers by this means. Next came wicker-work baskets of rushes or reeds, smeared with mud or pitch, similar to the ark in which Moses was found. Mr. Layard found such boats in use on the Tigris; they were constructed of twisted reeds made water-tight by bitumen, and were often large enough for four or five persons. Pliny says, in his time, “_Even now_ in British waters, vessels of vine-twigs sewn round with leather are used.” The words in italics might be used were Pliny writing to-day. Basket-work coracles, covered with leather or prepared flannel, are still found in a few parts of Wales, where they are used for fording streams, or for fishing. Wooden canoes or boats, whether hollowed from one log or constructed of many parts, came next. The paintings and sculptures of Upper and Lower Egypt show regularly formed boats, made of sawn planks of timber, carrying a number of rowers, and having sails. The Egyptians were averse to seafaring pursuits, having extensive overland commerce with their neighbours.