div class=trans-pagebuttonPage 1button div class=trans-image amp-img class=trans-thumb alt=Page 1: Basutoland Kimberlites src=https:reader030fdocumentscoreader030viewer2022020522575068181a28ab0f07ae949ehtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divp© 1961 Nature Publishing Grouppdiv