e forces will structure; but it would be otherwise if the one common centre. Thus, the upper and wrought-iron bar may be substituted and used show that the amount of vertical support gi- lower parts of the voussiors, and the tie be- tie were not acompanied by a longer and rigid tensionally, for the… … to the arnount of vertical pressure occurring at their several points of construction with the the radial rods, These rods are divided into asisthe case with suspension Bridges; and cap embracing circular raised parts of each; therefore the whole will be alike affected by a lower part of the truss.…
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