His own works include, besides the catalogues and bibliographies already mentioned, translations from Flemish of Hendrik Conscience's Sketches of Flemish Life, 1846, from German of part of Brunnhofer's Life of Giordano Bruno, Scheffel's Die Schweden in Rippoldsau, and Eckstein's Eternal Laws of Morality; and a memoir of Joseph Octave Delepierre, Belgian consul in London, whose daughter he married.
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He died at his residence, 29 Upper Hamilton Terrace, Maida Vale, on 30 March 1884, leaving one daughter.
He was credited with making the field of Americana a recognized field of scholarship by the bibliographer Nicholas Trübner.
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