 Massey was appointed Goldsmid Professor of Applied Mathematics at University College London , in 1938 , following the death of L. N. G. <unk> the previous year . He brought with him Buckingham , now an 1851 Exhibition Scholar himself , and David Bates , a promising graduate student . They brought the differential analyser with them to London , where it was destroyed by an air raid during the Second World War . 
