Besides his work in connection with the public records, he contributed to the controversy concerning the probable date of the Athanasian Creed. He argued in favour of the antiquity and authenticity of the manuscript of the creed formerly among the Cotton manuscripts and now in Utrecht University. In 1843, he prepared, under the title of "A Catalogue of the Lords Chancellors, Keepers of the Great Seal, &c.," a useful list of various legal officials in successive periods of history, and in 1852 published the life of his friend and patron, Lord Langdale.