The Elements of Graphical Statics and Their Application to Framed Structures: With Numerous Practical Examples of Cranes--bridge, Roof and Suspension Trusses--braced and Stone Arches--pivot and Draw Spans--continuous Girders, &c., Together with the Best Methods of Calculation, and Containing Also New and Practical Formulae for the Pivot Or Draw Span--braced Arch--continuous Girder, Etc. Atlas