Two Methods for Analysis of Continuum Mechanics of Elastic Structures -- Vibrations of Inclined Bars with End Constraint -- Vibrations of Frames with Inclined Members -- Vibrations of X-Braced Portal Frames -- Vibrations of X-Braced Multi-Story Frames -- Effect of Rotatory Inertia and Shear Deformation on Vibration of Inclined Bars -- Out-of-Plane Vibrations of Plane Frames -- Buckling of Incli…