Mommsen, Th., Röm. Forschungen, i. 129-217; Berns, C., De comitiorum tributorum et conciliorum plebis discrimine; Soltau, W., Altröm. Volksversammlungen, 37-46; Humbert, G., Comitia, in Daremberg et Saglio, Dict. i. 1374 ff.; Concilium, ibid. 1432 f.; Liebenam, W., Comitia, in Pauly-Wissowa, Real-Encycl. iv. 679 ff.; Kornemann, E., Concilium, ibid. iv. 801 ff.; Vaglieri, D., Concilium, in Ruggiero, Diz. ep. ii. 566 ff.; see also indices s. Comitia, Concilium, in the works of Niebuhr, Schwegler, Lange, Mommsen, Marquardt, Willems, Herzog, etc. The authorities thus far named represent the usual theory as to the distinction between comitia and concilium based on the definition of Laelius Felix discussed in this chapter. A new view is presented by Botsford, G. W., On the Distinction between Comitia and Concilium, in Transactions of the American Philological Association, xxxv (1904). 21-32—a paper reproduced with additions in the present chapter. See also Lodge, G., Lexicon Plautinum, i. 277 f. (Comitia), 289 (Concilium); Forcellini, Totius Latinitatis Lexicon, ii. 297 f. (Comitia), 347 f. (Concilium); Gudeman, Concilium, in Thesaurus linguae latinae, iv. 44-8.