. Palermo, 1900.

D. _The Duel and the Ordeal of Battle_

(1) Millingen, J. G. _The History of Duelling._ Including narratives of
the most remarkable personal encounters that have taken place from the
earliest period to the present time. 2 vols. London, 1841.

(2) Steinmetz, Andrew. _The Romance of Duelling in All Times and
Countries._ London, 1868.

(3) Sabine, Lorenzo. _Notes on Duels and Duelling._ Boston, 1855.

(4) Patetta, F. _Le Ordalie._ Studio di storia del diritto e scienza del
diritto comparato. Turino, 1890.

(5) Lea, Henry C. _Superstition and Force._ Essays on the wager of law,
the wager of battle, the ordeal, torture. 4th ed., rev., Philadelphia,
1892.

(6) Neilson, George. _Trial by Combat._ In Great Britain. Glasgow and
London, 1890.

E. _Games and Gambling_

(1) Culin, Stewart. "Street Games of Boys in Brooklyn, N.Y.," _The
Journal of American Folk-Lore_, IV (1891), 221-37.

(2) ----. _Korean Games._ With notes on the corresponding games of China
and Japan. Philadelphia, 1895.

(3) ----. "Games of the North American Indians," _Twenty-fourth Annual
Report of the Bureau of American Ethnology, 1902-3._ Washington, 1907.

(4) Steinmetz, Andrew. _The Gaming Table: Its Votaries and Victims, in
all Times and Countries, Especially in England and in France._ London,
1870.

(5) Thomas, W. I. "The Gaming Instinct," _American Journal of
Sociology_, VI (1900-1901), 750-63.

(6) O'Brien, Frederick. _White Shadows in the South Seas._ Chap. xxii,
pp. 240-48. [Memorable Game for Matches in the Cocoanut Grove of Lano
Kaioo].

III. CONFLICT GROUPS

A. _Gangs_

(1) Johnson, John H. _Rudimentary Society Among Boys._ "Johns Hopkins
University Studies in Historical and Political Science," 2d series, XI,
491-546. Baltimore, 1884.

(2) Puffer, J. Adams. _The Boy and His Gang._ Boston, 1912.

(3) Sheldon, H. D., "Institutional Activities of American Children,"
_American Journal of Psychology_, IX (1899), 425-48.

(4) Thurston, Henry W. _Delinquency and Spare Time._ A study of a few
stories written into the court records of the City of Cleveland.
Cleveland, Ohio., 1918.

(5) Woods, Robert A., editor. _The City Wilderness._ A settlement study
by residents and associates of the South End House. Chap. vi, "The Roots
of Political Power," pp. 114-47. Boston, 1898.

(6) Hoyt, F. C. "The Gang in Embryo," _Scribner's_, LXVIII (1920),
146-54. [Presiding justice of the Children's Court of the city of