292 Improvement in the Construction of Bridges, &c. 
Vo. 1. A section of a oe with the roof, suspension oa and all the parts, 
n the pier, with a scale of feet 
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No.2. The:side elevation of a truss, to the same scale. The height of a truss may be 
al teri Oe tess, Sie number of half diamonds; or by a change 9. the angle of the 
