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<p>Book digitized by Google from the library of Harvard University and uploaded to the Internet Archive by user tpb.
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<br>Subjects: iron; termed; stone; beam; beams; surface; formed; tlie; strength; joints; cast iron; wrought iron; resistance offered; side slopes; top surface; cold blast; springing lines; sheeting piles; diagonal braces; broken stone</div>
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Dennis Hart Mahan</div>
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