div class=ts-pagebuttonPage 1button div class=ts-image a href=https:reader030vdocumentsmxreader030viewer20220205225750678c1a28ab0f07ac0866html5page1jpg target=_blank amp-img class=ts-thumb alt=Page 1: North American Geology–Idaho and Wyoming src=https:reader030vdocumentsmxreader030viewer20220205225750678c1a28ab0f07ac0866html5thumbnails1jpg width=142 height=106 layout=responsive amp-imga divp© 1880 Nature Publishing Grouppdivdiv class=ts-pagebuttonPage 2button div class=ts-image a href=https:reader030vdocumentsmxreader030viewer20220205225750678c1a28ab0f07ac0866html5page2jpg target=_blank amp-img class=ts-thumb alt=Page 2: North American Geology–Idaho and Wyoming src=https:reader030vdocumentsmxreader030viewer20220205225750678c1a28ab0f07ac0866html5thumbnails2jpg width=142 height=106 layout=responsive amp-imga divp© 1880 Nature Publishing Grouppdiv