He worked intensely on the Talmud and contributed no less than 190 papers to Chambers's Encyclopaedia, in addition to essays in Kitto's and Smith's Biblical Dictionaries, and articles in periodicals.
See the liturgical and ecclesiastical dictionaries of Martigny, Migne, and Smith and Cheetham, sub voce, where all the scattered references are collected together and summarized.
His publications, though always of the most thorough and scholarly character, were to a large extent dispersed in the pages of reviews, dictionaries, concordances, texts edited by others, Unitarian controversial treatises, &c.; but he took a more conspicuous and more personal part in the preparation (with the Baptist scholar, Horatio B.
Herrlich, De Aerario et Fisco Romanorum (Berlin, 1872); and the usual handbooks and dictionaries of antiquities.
The early dictionaries of Muspratt and Watts are out of date; there is a later edition of the latter by H.