The “Baggeraak” (dredging ake) forms a special group. As has been said already, they can be classified in three groups. To the first group, belongs the “Vlet” (flat) or “Baggeraak” which is met with in Southern Holland, the West of the Betuwe, the West of Northern Brabant (the Biesbosch and Donge) and also in Zeeland, in a word, on all our tidal rivers. The “Flette” or “Baggeraak” (called also “Sliedrechtsche aak”) was a small stout boat which, save for a small cuddy in the bow, was wholly open. Its rig was the “Spritsail”, it was provided with lee boards and movable wash boards so as to facilitate the casting of hand dredges. These wash boards were placed only when the boat was partially loaded, that is when it was appreciably down in the water. The mast was set at one-fifth to one-fourth of the length of the vessel from the bow. The ratio of beam to length was as 1:4. The planking was continuous to the nose against which a false stem was fitted. In Zeeland, a great many “Hoogaarsen” are used for dredging, and “Boeieraakjes” are employed in Brabant and Holland, as at the Biesbosch and on the Amer and the Donge. They are also used a great deal on the Meuse, although there, as on other upper rivers, the “Bovenlandsche Baggeraakjes” were formerly employed. [Sidenote: III 70] There belong to the _Bovenlandsche baggeraakjes_ those vessels of the Meuse which stand midway between the “Keen” and the “Whalemajol”. They have a little sprit sail rig and a “Klaphekken” (a special kind of rudder). The largest, known especially by the name of “Hedelsche Aken” and which carry lee-boards, are used for all sorts of purposes. These boats belong neither to the true Meuse type nor to the Rhenish type above Bonn (The Keen, etc.). They form an isolated group, descended probably from the two types in question. [Sidenote: III 73] [Sidenote: III 72] The _Vreeswijksche zandschuit_ (sand boat of Vreeswijck) alone remains of the Rhine boats. It has the bow of a “Dorstensche Aak” and the stern resembles that of the “Dortsche Zandschuit” (sand boat of Dordrecht). This “Dortsche Zandschuit” is alike at bow and stern and the hull is smooth. Although it is more pointed, this boat resembles the “Westerling” a little, the latter being known as a very old boat of the lepper Scheldt (see ~Dehem~, p. 505). The old “Dortsche Zandschuit” was especially used for dredging ballast intended for sea-going vessels. A large number of “Bokken”, already mentioned among the “Westlanders”, are used for levelling down the dunes in the West and in the Rhine country. [Sidenote: III 87] The “Slijkpraam”, which resembles the “Kromme Rijnaak” already mentioned, is used in the province of Utrecht, while finally, the “Vlotpraam” or “Slijkpraam” is still met with in Groningen. [Sidenote: II 246] From a certain standpoint, the “Hoogeveensche Pramen”, mentioned above, which are used in the peat bottoms, should be classified in this group. THE “BAGGER-OR MODDERMOLEN” (_The Dredge_).