From 1903 to 1914 he also held the Cayley Lectureship in Mathematics, then from 1914 until he retired in 1936 he was Lowndean Professor of Astronomy and Geometry.
Mula sa 1903 na 1914 siya rin ang hawak Cayley paglelektyur sa Matematika, at pagkatapos, mula 1914 hanggang siya ay nagretiro sa 1936 siya ay Lowndean Professor ng Astronomy at geometry.