This work, first published in 1822, was edited by Peter Paul Dobree (1782-1825) who had been entrusted with the literary remains of the eminent classical scholar Richard Porson (1759-1808). It contains the text of a ninth-century Greek lexicon compiled by Photius, Patriarch of Constantinople. The lexicon was a tool for Byzantine Greeks studying the works of ancient authors, whose language and vocabulary differed significantly from the day-to-day language...