George Gregory Smith, Dictionary of National Biography… (1912)
“ Masson continued to edit the 'Magazine' with success till 1867, when his place was taken by Sir George Grove [q. v. Suppl. I] . In the autumn of 1863 he undertook, in addition, the editorship of the short-lived 'Reader.' Two years later he published a volume of essays entitled 'Recent British Philosophy.' On the death of William Edmonstoune Aytoun [q. v.] in 1865, Masson was appointed professor of rhetoric and English literature in the university of Edinburgh; and from that date to the close he resided in Edinburgh. There he completed his 'Life of Milton' ”
