SOCIAL ASPECT: That division of primitive culture that is concerned preeminently with preserving and stabilizing fundamental customs, with the maintenance of peace and order within its primary social units, and to this end, in the organization, functioning and continuation of such units. SOCIAL CONTROL: Any general social means by which a social or political group preserves peace and order within itself and group protection against outsiders (see Family-type and Political Agency). SOCIAL STRUCTURE: The persisting system of significant relationships in a society that prevails without regard to the particular individuals involved. SPEARHEADS: Projectile points 3 to 6 or 6½ inches long presumed to have been used to tip spears. SPEARTHROWER (ATLATL): A short stick by which increased leverage is obtained in hurling a spear. It gives greater range and an accuracy comparable to the bow at shorter distances. SPEARTHROWER WEIGHT: A weight secured to the spearthrower for controlling it and increasing the speed of the spear. SPEAR, THRUSTING: A long spear that is fitted with a long, narrow head generally without barbs or shoulders, that can be easily withdrawn from a wound. It is primarily for use in the hand, not for throwing. SPECIALIZATION (CRAFT): An occupation in which a man or household of a primitive community engages primarily to the considerable exclusion of the general economic pursuits or the remainder of his group. It should not be confused with the production of a highly skilled craftsman. SPECIALIZATION (OF TOOLS): Applies to numerous variations in the forms derived from a general artifact type presumably to accomplish better and more easily certain special requirements of construction or manufacture. STAGE (CULTURAL): One of the major periods into which cultures may be divided by virtue of its degree of development which depends primarily on the fundamental invention that ushered it in. SPIRITUAL ASPECT: That division of primitive culture concerned primarily with tribal values, religion, recreation and the arts. STATUS (CULTURAL): A subdivision of a stage. A substage. STONE: Unless otherwise noted any kind of stone generally used by primitive peoples for pecking, grinding and polishing into weapons, tools, etc., for example, granite, greenstone, gneiss, shale, limestone, basalt. STONE VAULT GRAVE: A type of burial mound consisting chiefly of flat stones enclosing a walled-up tomb chamber, the whole covered with earth. In Illinois known at present only from Adams County. STONE VAULT SUBCULTURE: A division of Final Woodland Phase that is characterized by stone vault graves. SUBCULTURE: Any archaeological grouping smaller than a phase.