These caravels dit not remain in use to act as “Kraecks”; but with this vessel we reach the time when the reciprocal influence of the two centres begins to be felt. [Sidenote: II 119] [Sidenote: II 117] Two existing Flemish miniatures show clearly the difference which existed between the Dutch type and the foreign type; they date from 1482 and 1488 respectively. The first is the picture of the true type of the Dutch vessel; the second shows a foreign ship. On the first, the vessel is represented with smooth sides; therefore this system of construction was adopted among us in the XVth century. The vessels are not yet made with a square stern, however; their stern being still round in accordance with the ancient way. As a general rule, they were of small size, and our present sea “hoys” could have been compared with them in this respect. They had a capacity of 160, 180 and 200 tonnes, or 80, 90 and 100 “lasts”. Nevertheless, there were also some of 220, 230 and 240 tonnes, or, 110, 115 and 120 lasts. (~M. de Jonge~, Vol. I, p. 80.) The “Karvielen” and the “Kraecken” disappear in the XVIIth century and, at this time, no more types which differ from the ordinary Holland type are met with. Hence it can be maintained that the “Karvielen” and “Kraecken” did not succeed in taking root with us. It will be seen, on the contrary that the full-bowed vessels came more and more into use. The name of “cog” was, therefore, no longer in use in the XVth century. Nevertheless this type of vessel continued to exist. The “cog” gave birth to the “Hulken” and these latter to the “Baertzen”. Although modified, the first form, that of the full-bowed ship, remained in use. One single characteristic disappeared: that of the slender bows and sterns of the old “Viking” boat which are found in all the reproductions known in the North-West of Europe, from Denmark to and including England and the North of France. The rigging developed in its turn: the single mast was replaced by three pole masts, each having a top and a single large sail. The ropes were made stronger and channels appeared near the end of the XVth century. The steering oar of the old “cog” had long since given place to the rudder. It would be incorrect to call “cogs” the vessels represented by Master W. A., as Arenhold has done in his work: _Die allmähl. Entwickelung des Segelschiffes von der Römerzeit bis zur Zeit der Dampfer_, p. 650--(_Jahrbuch der Schiffbautechnischen Gesellschaft_, 1906). They are, however, forms which issue from the “cog” but not new forms developed alongside of ancient forms. If history be consulted, there will be no cause for surprise at seeing the effects of the contact of the two Centres appear exactly in the XVth century.