There is even a reproduction which dates from the beginning of the XVIth century and which shows a Zeeland “cog”. The bow and stern seem there to be identical in shape; it is to be assumed however, judging by the position of the mast which is at about one-third the length of the ship abaft the stem, that the bow was fuller than the stern. The stem is curved as is also the sternpost; the tiller passes through a _statie_[9]. The mast rakes a great deal, as was required by the use of the old sprits; the vessel is also provided with lee-boards. The reproduction does not show clearly whether the hull is clinker built. It is very possible that the sides were carvel built, because this style of work was already in use at that time. The boat has no “arcasse”[10]; the hold is covered with convex hatch covers. [Sidenote: III 115] [Sidenote: III 116] This Zeeland “cog” is derived, doubtless, from the primitive “cog”. Let us suppose this vessel as having a little fuller ends; as having the mast in the middle; as having a steering oar instead of a rudder; the lee-boards suppressed and a clinker-built hull; we shall have an idea of the “cog”. This being so, the cause of the existence of our “bom” becomes more important; this latter boat, as is well known, has been greatly enlarged during the past century and has gained fullness at the ends so as to increase its capacity. This is noticeable when the bow of a “bom” is compared with that of the boat used for catching shrimps. This latter has still the old rounded forms and is not so wide in proportion to its length. [Sidenote: III 112] Let us suppose then that the “bom” is less square at its ends, higher at bow and stern, that is to say: having a little more sheer, like the boats of former times; there will be had a vessel which, with its clinker built sides, will differ little from the old “cog”, still met with as a rarity in our fleet of fishing boats. Changed in this way, the “bom” no longer differs so much from the “Egmonderpink” reproduced and described by ~Witsen~ (p. 168); it might even be concluded that it descends therefrom. It can be understood from this how it is, even in our days, that the “bommen” are often called “pinken”. Thus a picture, in the town Museum of The Hague, shows the beach at Schevening covered, not with “bommen” but with “Egmonderpinken”. This subject will be taken up again in speaking of fishing boats. [Sidenote: II 243] The shrimp fishing boats have been less changed; consequently, aside from the _counter_ which was added later, they differed less from the “Egmonderpink” which, finally, are found again almost complete in the Ostend fishing boats, as ~Lelong~ has pointed out in his _Encyclopedia of Naval Architecture_, p. 17.