Another major contribution was to the Cyclopaedia of Biblical, Theological, and Ecclesiastical Literature (10 vols., 1867–81; supplement, 2 vols., 1885–7).
Kontribusi besar lain adalah untuk Cyclopaedia of Biblical, Theological, and Ecclesiastical Literature (10 jilid., 1867-81; suplemen, 2 vol., 1885-7).