Chronology—The study of the method of arranging past events or the material representing them in a sequence of their happenings in relation to years or in relation to each other. Cist—An oval or circular pit, often slab-lined, used for storage. Cists sometimes served a secondary purpose as depositories for the dead. Clan—A social group made up of a number of households, the heads of which claim descent in either the male or female line from a common ancestor. Cloisonne—A surface decoration produced by outlining a design with strips of flat wire and filling the interstices with enamel. Complex—A group of related traits or characteristics which combine to form a complete activity, process, or cultural unit. Compound—In the Orient, a wall or fenced enclosure containing a house, buildings, etc. The term is also used to describe the walled enclosures built during Classic Hohokam times. Corrugated Pottery—Pottery in which the alternate ridges and depressions resulting from a coiling-and-pinching technique of manufacture have not been obliterated. Coursed Masonry—Masonry constructed of stones lying on approximately level beds. Cranium—Skull (Plural: Crania) Culture—The total activities and beliefs of a group of individuals which may be separated from other groups on the basis of differences in complexes and original differences in geographical and chronological positions. In an archaeological context, the material remains of a group of people which represent traits which they had in common, which differentiated them from other people. A _Basic Culture_ is, as the name implies, one which provides a base or foundation for succeeding cultures. It is essentially a cultural root from which may spring stems and branches. Deflector—An upright slab, standing between fireplace and ventilator in a pit house or kiva, designed to protect the fire from inrushing air. Dendrochronology—A system of establishing an absolute count of years by utilizing the pattern combinations of tree-rings. Diffusion—The transference of elements of culture from one society to another. Effigy—An image of a living object. Ethnology—The scientific study of the cultures of living primitive peoples. Hatchures—Short, closely spaced, parallel lines used in pottery designs. Hogan—A Navajo house; one room, domed or conically shaped, made of logs, sometimes with stone side walls, usually covered with earth. Horizon—In a site, a level or stratum. In a culture, a particular level of development. Incised—In pottery, grooved in soft clay with a sharp tool. Jacal—A type of construction in which walls are made of upright poles set at short intervals and heavily plastered with adobe. Katchinas—Supernatural beings in Pueblo Indian mythology, or masked dancers personifying these beings.