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Knight's Mechanical Encyclopedia (ed. Knight) 4 0 Browse Search
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gers for short distances in and about the cities of London, Liverpool, and elsewhere. Boats for sporting and racing purposes are frequently made of paper. Wheelwright's machine. The following is a description of one constructed for Walter Brown, the celebrated oarsman, after the Waters patent, from a model of his own. This boat is 31 1/2 feet long, 12 inches wide, and weighs but 22 pounds. The lightest wooden boat ever built of similar dimensions weighed 41 pounds. The most singular etic acid, in other troughs. 3,091, of 1857, Edwin Hills. Lead ore, roasted to drive off the sulphurous gases which are used for making sulphuric acid, is formed into stacks, and acetic-acid vapor introduced at their bases. 1,411, of 1858, Brown and Young. Carbonic-acid gas is passed through nitrate of lead, in solution. The carbonate thus formed is lixiviated with lime water. 88, of 1860, George Robinson. Chloride of lead is mixed with carbonate of ammonia. 1,288, of 1860, Will