udies of, 331.

CONTACTS, SOCIAL:
_chap. v_, 280-338;
_bibliography_, 332-36;
in assimilation, 736-37;
avoidance of, 292-93, 330;
defined, 329;
desire for, 291-92;
distinguished from physical contacts, 282;
economic conception of, 280-81;
extension through the devices of communication, 280-81;
as the first stage of social interaction, 280, 282;
frontiers of, 288-89;
intensity of, 282-83;
investigations and problems of, 327-31;
land as a basis for, 282, 289-91;
preliminary notions of, 280-81;
and progress, 988-89;
and race conflict, 615-23;
and racial intermixture, 770;
and social forces, 36;
sociological concept of, 281-82;
spatial conception of, 282;
sympathetic versus categoric, 294-98;
in the transmission of cultural objects, 746.
_See_ Communication; Contacts, primary; Contacts, secondary; Continuity;
Interaction, social; Mobility; Touch; We-group and others-group.

CONTAGION, SOCIAL:
_bibliography_, 936-38;
and collective behavior, 874-86, 878-81;
in fashion, 874-75;
and psychic epidemics, 926-27.

CONTINUITY:
through blood-relationship, 351-52;
by continuance of locality, 350;
through group honor, 355-56;
through the hereditary principle, 353-54;
historical, 283-84, 298-301;
through leadership, 353-54;
through material symbols, 354-55;
through membership in the group, 352-53;
through specialized organs, 356.

CONTROL:
aim of sociology, 339;
defined, 182;
the fundamental social fact, 34;
loss of, and unrest, 766-67.
_See_ Control, social.

CONTROL, SOCIAL:
_chap. xii_, 785-864;
_bibliography_, 854-61;
absolute in primary groups, 285-86, 305-11;
through advertising, 830;
in the animal "crowd," 788-90;
as an artefact, 29;
central problem of society, 42;
and collective behavior, 785-86;
and the collective mind, 36-43;
and competition, 509-10, 561-62;
and conflict, 607-8;
and corporate action, 27;
in the crowd, 790-91;
in the crowd and the public, 800-805;
defined, 785-87;
and definitions of the situation, 764-65;
elementary forms of, 788-91, 800-816, 849-50;
and human nature, 785-87, 848-49;
and the individual, 52;
investigations and problems, 848-53;
through laughter, 373-75;
mechanisms of, 29;
through news, 834-37;
through opinion, 191-92;
organization of, 29;
through prestige, 807-11, 811-12;
through propaganda, 837-41;
in the pub