div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Recent Developments in the Geology of the USSR src=https:reader035fdocumentsinreader035viewer2022073107575067db1a28ab0f07ad766fhtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divp© 1938 Nature Publishing Grouppdivdiv class=trans-pagebuttonPage 2button div class=trans-image amp-img class=trans-thumb alt=Page 2: Recent Developments in the Geology of the USSR src=https:reader035fdocumentsinreader035viewer2022073107575067db1a28ab0f07ad766fhtml5thumbnails2jpg width=142 height=106 layout=responsive amp-img divp© 1938 Nature Publishing Grouppdiv