div class=ts-pagebuttonPage 1button div class=ts-image amp-img class=ts-thumb alt=Page 1: Sir Edward Poulton FRS src=https:reader036vdocumentssitereader036viewer2022081804575067d71a28ab0f07ad6558html5thumbnails1jpg width=142 height=106 layout=responsive amp-img divp© 1936 Nature Publishing Grouppdiv