The builder's practical director; or, Buildings for all classes, containing plans, sections and elevations for the erection of cottages, villas, farm buildings, dispensaries, public schools, &c., with detailed estimates, quantities, prices, &c. .. (1855)
Leipzig, Dresden : A. H. Payne; [etc., etc.] · leaf 748
at £ 14 per ton. Assuming the depthof the girder at a convenient dimension, to find the ana of the bottom flange, the length of thegirder is to be mulli|)lie(l by the l)rcaking weight in tons, and this product, divided by (he depthin indus of the girder, multiplied by the constant number mentioned.… … DESCRUTIUN OF TLATFS. Ill
Architecture
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