fɹʌm nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi sˈɛvən tə nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi sˈɪks, hiː wʌz dᵻɹˈɛktɚɹ ʌvðɪ ˈɪnstɪtˌuːt ænd saɪəntˈɪfɪk mˈɛmbɚɹ ʌvðə kˈaɪzɚ wˈɪlhɛlm səsˈaɪəɾi.
From 1937 to 1946, he was Director of the Institute and Scientific Member of the Kaiser Wilhelm Society.