shut, thus:
or thus:
shut:
Peat costs about one doit each, or twelve and a half stivers the hundred. One hundred make seven cubic feet, and to keep a tolerably comfortable fire for a study or chamber, takes about six every hour and a half.
A machine for drawing light empty boats over a dam at Amsterdam. It is an axis in peritrochio fixed on the dam. From the dam each way is a sloping stage, the boat is presented to this, the rope of the axis made fast to it, and it is drawn up. The water on one side of the dam is about four feet higher than on the other.
The camels used for lightening ships over the Pampus will raise the ships eight feet. There are beams passing through the ship's sides, projecting to the off side of the camel and resting on it; of course that alone would keep the camel close to the ship. Besides this, there are a great number of windlasses on the camels, the ropes of which are made fast to the gunwale of the ship. The camel is shaped to the ship on the near side, and straight on the off one. When placed along side, water is let into it so as nearly to sink it; in this state it receives the beams, &c., of the ship, and then the water is pumped out.
Wind saw mills. See the plans detailed in the moolen book which I bought. A circular foundation of brick is raised about three or four feet high, and covered with a curb or sill of wood, and has little rollers under its sill which make it turn easily on the curb. A hanging bridge projects at each end about fifteen or twenty feet beyond the circular area, thus: