he Schuylkill of carbon. Their strengths vary inthe opposite direction, this novel interna] examination of materials, and its revela- from Philadelphia, have nearly completed a new rolling mill increasing with the dose of carbon, in a pretty regular tions, can be more completely exhibited.… … Its gradual rise shows that it may takea set have to support, but they have been proved ened steel, by a formula, constructed by the writer: 1 = under the action of the smallest forces. Its maximum hight to be capable of sustaining many times the greatest weight 60,000 + 70,000 C, in which T…
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