Muriel was a student from 1938. She completed her PhD with Professor E E Turner, and subsequently became a demonstrator, assistant lecturer, lecturer and reader. She was awarded a DSc in 1961 and published over 50 papers. She made many contributions to the College and to the University of London as a whole, including the Board of Studies and the Higher Degrees sub-committee. She also represented the University as Trustee of the Grey Coat Foundation. She retired in 1982, but was reappointed for two further years between 1982 and 1984.