Page:Great Neapolitan Earthquake of 1857.djvu/477

relapsed upon its base ($\mathrm {B}$), Fig. 237, and rising again upon the edge $b_{2}$, leaned over westward ($\mathrm {C}$), Fig. 237, having thus made one complete oscillation in that direction, with the moment of repose ($\mathrm {B}$), when it had fallen back plumb upon its base. Between that moment of repose, and the completion of the oscillation, or almost instantly after it had commenced to fall back ($\mathrm {C}$) from west to east, to reassume its original position of repose, the second shock from the north to south reached it, and twisted it round horizontally, in the manner that has been already explained.