109. The Archives of Kegan Paul, Trench, Trubner & Henry S. King 1858-1912, Chadwyck- Healey, 1974. Microfilm (published index: Index of authors and titles of Kegan Paul3 Trench3 Trubner & Henry S. King, Chadwyck-Healey/Somerset House, Bishops Stortford/Teaneck, 1974).
110. The Archives of Richard Bentley & Son 1829-1898, Chadwyck-Healey, 1976. Microfilm (published index: Index to the archives of Richard Bentley & Son, comp. Alison Ingram, Cambridge: Chadwyck-Healey, 1977).