Social Conditions: Dill, S., _Roman Society from Nero to Marcus Aurelius_;
Frank, _Economic History_, chs. xi–xvi; Friedländer, L., _Roman Life and
Manners under the Early Empire_, vols. i–ii; Louis, P., _Le Travail dans
le monde romain_; Waltzing, _Les Corporations professionelles_.
The Imperial Cult and Paganism: Burlier, E., _Le Culte imperial_; Cumont,
F., _Oriental Religions in Roman Paganism_; Dill, _Roman Society_;
Ferguson, W. S., _Legalized Absolutism en route from Greece to Rome_,
_Amer. Hist. Rev._, 1912; Friedländer, _Roman Life and Manners_, vol. iii;
Geffcken, J., _Der Ausgang des griechisch-römischen Heidentums_, 1920;
Glover, T. R., _Conflict of Religions in the Early Roman Empire_; Heinen,
H., _Zur Begründung des römischen Kaiserkults_, _Beiträge zur alten
Geschichte_, 1910; Kornemann, E., _Zur Geschichte der antiken
Herrscherkulte_, _id._, 1900; Reitzenstein, R., _Die hellenisteschen
Mysterienreligionen_; Wissowa, _Religion und Kultur_, pp. 66–83.
Christianity and the Roman State: Guimet, E., _Les chrétiens et l’empire
romain_, _la Nouvelle Revue_, 1909; Hardy, _Studies in Roman History_, 1st
ser., chs. i–x; Harnack, A., _The Expansion of Christianity in the First
Three Centuries_; Flick, A. C., _The Rise of the Medieval Church_, see
contents (excellent bibliography); Juster, J., _Les Juifs dans l’empire
romain_; Manaresi, A., _L’impero romano e il cristianesimo_; Ramsay, Sir
W., _The Christian Church in the Roman Empire before 170 A. D._; Walker,
W., _A History of the Western Christian Church_, pp. 1–108.
Literature and Art: Beloch, J., _Der Verfall der antiken Kultur_, _Hist.
Zeitschr_. 1900; Cagnat and Chapot, _Manuel d’archéologie romaine_;
Friedländer, L., _Roman Life and Manners_; Leo, _Römische Litteratur_;
Mackail, _Roman Literature_, pp. 91–259; Norden, E., _Römische
Litterature_; Schanz, _Geschichte der röm. Litteratur_, pts. ii–iii;
Strong, E., _Roman Sculpture_; Stuart Jones, _Companion to Roman History_;
Walters, H., _The Art of the Romans_.