For the political relations of Italy to Greece and the East reference
should be had to the standard histories of Rome; the following books
deal primarily with religion.
G. Wissowa: _Religion und Kultus der Römer_, 2 ed., 1912. The Standard
book on the subject; a comprehensive work of sound learning. Marquardt:
_Römische Staatsverwaltung_, III, 2 ed., 1885. W. Warde Fowler: _The
Religious Experience of the Roman People from the Earliest Times to the
Age of Augustus_, 1911. The best book for the period. Id.: _Roman Ideas
of Deity in the last Century before the Christian Era_, 1914; _The
Roman Festivals of the Period of the Republic_, 1899. J. B. Carter:
_The Religion of Numa_, 1906; _The Religious Life of Ancient Rome_,
chaps, i-iii, 1911. G. Boissier: _La religion romaine d’Auguste aux
Antonines_, 6 ed., 1906. A valuable book written by a master. Dill:
_Roman Society from Nero to Marcus Aurelius_, 2 ed., pp. 289-546, 1911.
E. Beurlier: _Le culte impérial_, 1891.