of 6 inch cylinders, and, to us a defect; but in other respects the design of the crane be transported from place to place, either by road or rail, at is very good; the different motions are compactly arranged, in addition to the lifting gear, has gear for slewing, travel- the shortest notice, and… … sociation for the Advancement of Science, fire box, showing that the steam in the M. Gourdon, of Lyon, described some novel upper portion of the vessel was super- facts which he had observed in the action of heated to’750° when the collapse occurred, acids upon zinc covered with certain metals.…
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