Journal - Franklin Institute of the State of Pennsylvania (1826)
Franklin Institute, Philadelphia, Franklin Institute (Philadelphia, Pa.) · [Philadelphia : Franklin Institute] · leaf 118
w^ight of the masonry was to rest upon it in theprocess of sinking. Its interior framing consisted of a series ofcurved wrought iron beams, abutting against cast iron struts, extend-ing from side to side, to resist the pressure of the soil, and the roofwas sustained by four transverse built beams,… … SECTION OF Pier .
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