div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: Science Teachers in Schools src=https:reader035vdocumentsusreader035viewer2022073020575068011a28ab0f07ae28aehtml5thumbnails1jpg width=142 height=106 layout=responsive amp-img divp© 1954 Nature Publishing Grouppdiv