The rudder was worked by means of a tiller fitted into the socket at the upper end. Unfortunately, the two extreme ends of the ship have decayed away, so that it is not possible to determine with accuracy what was the appearance of the bow and stern. It is, however, probable, from the direction taken by the planking towards the ends, that the vessel possessed very considerable sheer. As may be seen from the plan, the character of the lines was extremely fine, and it is probable that the boat was capable of high speed. The remains of the ropes which have been discovered prove that they were made from the bark of trees. This vessel may be considered as a connecting link between the ancient and mediaeval types of ships. Her proportions and scantlings prove that her builders had a large experience of shipbuilding, that they fully understood how to work their material and to adapt it properly to the duty it had to fulfil, and also that they understood the art, which was subsequently lost, to be revived only in modern times, of shaping the underwater portion of the hull so as to reduce the resistance to the passage of the vessel through the water. The only part of the structural design to which any serious exception can be taken is the very slight character of the connection between the top sides and the body of the boat, and even this defect was probably not very serious when we take into account the lightness of the loading, and the fact that it probably consisted chiefly of live cargo, so that there was little dead weight to cause serious straining. Vessels of the type of the Viking ships were built in Denmark at a very early date. In 1865 three boats were discovered buried in a peat bog in Jutland. Danish antiquaries consider that they were built about the fifth century of our era. The largest is 70 ft. in length and of such an excellent type that boats of somewhat similar form and construction are in universal use to this day all round the coasts of Norway. Such an instance of persistency in type is without parallel in the history of shipbuilding, and is a wonderful proof of the skill of the Norsemen in designing and building vessels. The boat in question is clinker-built, the planks having the same peculiarities as those of the Viking ship just described. It is of the same shape at both ends, and has great sheer at both stem and stern. The rowlocks, of which there are thirty, prove that the vessel was intended to be rowed in either direction. This also is a peculiarity of the modern Norwegian rowboat. The steering was effected by means of a large oar, or paddle. There is no trace of a mast, nor of any fitting to receive one; nor was the vessel decked. The internal framing was admirably contrived. In fact, it would be difficult, even at the present time, to find a vessel in which lightness and strength were better combined than in this fifteen-hundred-year-old specimen of the shipbuilder's art. CHAPTER IV. MEDIAEVAL SHIPS.