The Civil engineer and architect's journal, scientific and railway gazette (1839)
London : [William Laxton] · leaf 181
J ot-f-t-y Pig. 4.—Transverse section of a bar, andelevation of heel-post FJg . 5.—Transverse section of the middleof a bar. they are 2 inches thick, 16 inches broad at the ends, and 18 incheswide at the middle, with two double flanches 9 inches broad and 2inchrs thick on the hollow side, and 11…
Architecture · Civil engineering · Science
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