number 7. Num-| amount. Suspension Bridge is now passing may be considered that | ber 8 was first employed, but the larger size was preferred.| In this and the following article we propose to explain which includes the first permanent steps toward the forma-| When these wires are laid side by side,… … the great arches to the piers, and then from piers to anchor- . ? ing oo . ries wire for one inner main cable, the other’ part forthe cor- ages, is suspended by smaller vertical cables of constantly | inches in thickness, and the weight and tension of the bundle | responding outer main cable. On…
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