div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: · REFRACTION METHODS Two very different methods are available for solving near-surface problems Both approaches are proven performers in creating a good statics src=https:reader030vdocumentsnetreader030viewer20220218035b927e0109d3f2d9098b8470html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divdivdiv class=ts-pagebuttonPage 2button div class=ts-image amp-img class=ts-thumb alt=Page 2: · REFRACTION METHODS Two very different methods are available for solving near-surface problems Both approaches are proven performers in creating a good statics src=https:reader030vdocumentsnetreader030viewer20220218035b927e0109d3f2d9098b8470html5thumbnails2jpg width=142 height=106 layout=responsive amp-img divdiv