In 1885 Professor Heinrich Thorbeckebegan an edition of the text based on the Berlin codex, but only the first fasciculus, containing forty-two poems, had appeared when his work was cut short by death.
Besides the Speculum Richard also wrote, according to the statement of William of Woodford in his Answer to Wycliffe (Edward Brown, Fasciculus Rerum expetendarum, p. 193), a treatise De Officiis; and there was formerly in the cathedral library at Peterborough another tractate from his pen, entitled Super Symbolum.
Professor Comparetti, studying the first fasciculus of volume xi.