Dodge, Mary Mapes, 1830-1905 · [New York : Scribner & Co.] · leaf 263
this long crosspiece, braces arenailed to the tops of the triangles to keep themfrom leaning to one side or the other, as theymight easily do if not strongly braced. You now have a series of crosspieces run-ning from floor-timber to floor-timber for thelength of the bridge. On these lay two… … A LIGHTLY JLiDE TWO-POST BRIDOE, SHOWING CONSTRUCTION PLAN it meets the apex and where it meets thefloor-timber, so that, when spiked, it can get avery firm hold. In constructing this bridge, let the two sides,as you make them, lie flat on the ground, beingsure to have them of exactly the same…
Children's literature
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