Symbolic objects for ceremonial display, or sacra, tend to be systematically related in their representational content to the cult institutions that produce and manipulate them. Cult organization is normally pluralistic among preliterate complex societies. Mississippian sacra suggest a triad of coexisting types of cult institution: (1) a communal cult type emphasizing earth/fertility and purification ritual, (2) a chiefly cult type serving to sanctify chiefly authority, and (3) a priestly cult type mediating between the other two, supervising mortuary ritual and ancestor veneration.

The element-motif-layout framework of design analysis, which has dominated the study of prehistoric Southwestern ceramic decoration since the late 1930s, is shown to be ambiguous as a means of understanding and comparing such decoration. A new analytical approach is presented involving the isolation of design units based on comparative study of how design configurations are used in a style corpus of whole vessels. Application of the method and its usefulness in comparative stylistic studies, as well as potential usefulness in ceramic dating, are discussed.

Recent archaeological investigations of Mississippian period (A.D. 1000–1400) sites permit the development of population estimates for an area immediately south of Cahokia, the largest prehistoric site in North America. Population estimates are derived from the number of structures at 11 sites, with the amount of prehistorically habitable land being incorporated as part of the estimating procedure. Population density increased somewhat during the earliest two of four Mississippian phases, reaching its peak during the Stirling phase. Thereafter, population decreased, reaching its lowest point during the Sand Prairie phase.

Shellfish seasonality studies are summarized in this article, which presents the results of analysis at 94 sites in nine southeastern states. All but six of the sites are middens or shell lenses composed of marine or brackish water species (M. mercenaria, R. cuneata, D. variabilis). Shells in those sites along the Atlantic coast were collected from fall to early spring, while shells in sites on the Gulf coast were collected during early spring to summer. Freshwater shellfish middens in four states have been investigated and consistently indicated collection during warm weather. The uniformity of the results indicates that the variation in species used, techniques used, sample sizes, or geography have no noticeable negative impact on the usefulness of the results. It is argued that shellfish were a staple in the diet of many prehistoric horticultural peoples in spite of the fact that they are a dietary supplement for modern hunters and collectors.

During the field season of 1979 a bauxite statuette known as the Birger figurine was uncovered at the BBB Motor site, a Middle Mississippian ceremonial site on the outskirts of Cahokia. A comparison of the figurine's compositional elements with characteristics ascribed to fertility goddesses in the myths of several historic eastern North American tribes suggests that the Birger figurine's symbolism shares many of the concepts associated with various historic fertility deities, and that it represents a Mississippian version of the Earth-Mother.

A variety of fishes is depicted on Classic Mimbres figurative pottery of ca. A.D. 950-1150. Bowl paintings show fishing scenes and equipment. We have tentatively identified depictions of 20 fish taxa, 18 of which are of marine origin. The suite of species suggests a provenience in the Gulf of California, near Guaymas, Sonora. Mimbres traders apparently traveled 1,500 km from New Mexico's Mimbres Valley to the Gulf and back, probably to obtain shells and other materials for home use and for commerce.

In attempts to implement probabilistic survey designs in areas of reduced surface visibility, archaeologists have turned to shovel testing or Test Pit Sampling (TPS). Characteristically TPS involves excavation of small, systematically spaced test pits within larger survey units as a method of searching for archaeological materials that would otherwise go undiscovered. While TPS has been the subject of considerable study most studies have been theoretical in nature. As a result, while the characteristics of TPS are understood generally, it is not known how well the method functions in known archaeological contexts. This article describes the results of research directed at estimating the reliability and validity of the test pit method when carried out on known archaeological sites under varying conditions of artifact density and spatial clustering. Split-half correlations and logistic regressions show that TPS is reliable in the sense that it produces replicable results, but is biased against discovery of small, low-density sites, especially when these sites exhibit high degrees of spatial clustering of artifacts. A model relating TPS to regional survey in general is presented and a means of estimating potential biases of the method is illustrated.

Archaeologists now possess the knowledge and techniques necessary to identify pottery-vessel function with a reasonable degree of specificity. This article is intended to demonstrate that capability. The pottery vessel assemblage characteristic of the sixteenth-century Barnett phase in northwest Georgia consists of 13 physically and morphologically distinct vessel types. The mechanical performance characteristics of these vessel types are identified and employed in formulating hypotheses concerning the way vessel types were used. Historic Southeastern Indian food habits are reconstructed from ethnohistorical and ethnographic evidence and employed to refine the vessel-use hypotheses.

Prior research on the function of shoe-shaped chultuns found in the southern Yucatan peninsula has focused on their use for household level storage of dry foodstuffs. We found that inter- and intra-site distribution patterns of chultuns do not support the household storage hypothesis. At Tikal only 20-25% of the households had chultuns, and most of these households had two or more chultuns. We believe the distributional data suggest that chultuns were associated with a cottage-level industry in the context of a vending economy. Because the internal environment of chultuns appears favorable for conducting fermentations, we propose that they were used as places to process, and for limited periods to store, fermented foods such as alcoholic beverages and pickled fruits. The greatest demand for chultun products was apparently centered around large urban sites in northeastern Peten and northern Belize where frequent civic/religious festivals encouraged a small to moderate market potential.

Archaeologists frequently explain tool curation by its efficiency. Such explanations ignore the fact that curation is a complex activity and that its component parts are efficient in different ways. I argue that the nature and distribution of lithic resources critically affect technological efficiency and I discuss two aspects of curation, maintenance and recycling, asserting that they are responses to raw material shortages. Shortages result from regional geological conditions and from behavior patterns that restrict access to raw material in certain contexts. Ethnographic and archaeological examples support this hypothesis and highlight the relationship between subsistence-settlement organization, raw material distribution, and technology.

Analysis of bone collagen extracted from human skeletal remains from archaeological sites dating from the Archaic period through Euro-American settlement provides evidence for the introduction of maize into regional subsistence patterns. Stable carbon isotope ratios of samples from both the eastern Ozarks and the Mississippi River alluvial valley indicate that human populations living prior to ca. A.D. 1000 consumed little or no C4 plant material. In populations dating after ca. A.D. 1000, stable carbon isotope ratios indicate that maize represented a significant part of the human diet throughout the region. The change in dietary patterns coincides with a shift in settlement patterns from dispersed hamlets and small villages to civic-ceremonial centers with associated villages, hamlets, and farmsteads. This isotopic evidence indicates that Emergent Mississippian diets did not include substantial quantities of maize or other C4 plant material.

Design engineers share archaeologists' interest in material culture, but unlike archaeologists, engineers have developed concepts for determining the suitability of technical systems to perform specific tasks. Given the difficulty archaeologists face in developing theories of material culture, I suggest that guiding principles of engineering design offer potentially useful insights.

In this article I discuss two design alternatives for optimizing the availability of any technical system - reliability and maintainability. Reliable systems are made so that they can be counted on to work when needed. Maintainable ones can easily be made to function if they are broken or not appropriate to the task at hand. Because these design alternatives have markedly different optimal applications and observably different physical characteristics, archaeologists can link the design of prehistoric weapons to environmental constraints and to specific hunting strategies. Ethnographic examples indicate that primitive hunters do use both reliable and maintainable systems in optimal situations.

The probability of detecting sites using subsurface testing programs is a serious concern for archaeologists working in the eastern United States. Some have suggested that current test-probe programs provide a poor method for estimating the frequency and distribution of sites. In this article I examine the usefulness of subsurface testing programs by comparing the results of an Eastern subsurface survey with a pedestrian surface survey conducted in the Southwest. The subsurface survey at Shelter Island, New York, was designed so that probability limits could be calculated for detecting sites of varying sizes. These probabilities were then employed to estimate the number and kinds of sites contained in sample units. When these results were compared with those from a pedestrian surface survey in northeastern Arizona, the results suggested that carefully designed subsurface surveys, although extremely labor-intensive, can provide settlement-pattern information as detailed as that collected in surface surveys.

With the rise in importance of the archaeological survey as a major data-recovery tool has come greater concern over methods for making inferences about site subsurface characteristics from surface materials. One growing area of concern is the identification of site function using surface features and artifact assemblages. Here we examine the relations among architectural site types (defined using surface features), modeled functional site types, and surface artifact assemblage characteristics. Analysis proceeded in three stages, each one built on the previous stage. In the first stage we used site type models to predict surface assemblage differences between types and then tested these predictions with the surface assemblages from surveyed sites grouped by architecture type. The procedures involved analysis of variance, difference-of-means tests, and discriminant analysis. In the second stage, we used discriminant analysis to create a classification function for predicting site type on the basis of artifact assemblages. In the third stage of the analysis, we investigated possible reasons for the uneven classification results. We conclude our analyses by presenting an example of functional change that affects the ability of the discriminant analysis to distinguish between two of the site types.

The history of coring and augering at archaeological sites is traced to two periods in the twentieth century. In the first period, Period I (1935-1955), the technique was used primarily to correlate archaeological deposits with river sediments for dating purposes. Rarely were the deposits containing artifacts cored or augered; rather the stratigraphic relationship of cultural to non-cultural deposits was sought. Most of this work was done in the Lower Mississippi River Delta where geologists had calculated absolute dates for river deposits. This period seems to have ended with the availability of radiometric dating and was followed by Period II (1964-present). After 1964 there is a renewed interest in coring and augering, mostly following a shift in archaeological research interests from culture history toward ecological questions. This shift coincides with the availability of a new device: a mechanical corer. During Period II, coring is utilized in many different projects, including reconstructing the environment surrounding sites, collection of samples from subsurface deposits, and locating buried archaeological sites. Following the discussion of the history of coring and augering, a description of equipment, techniques, and data potential is presented.

A review of material from Copan, originally assigned a post A.D. 1000 date, suggests the existence of two separate temporal episodes, one a Terminal Classic equivalent. A rare trade ceramic found in this Copan Terminal Classic and at contemporary Seibal is also present in a ceramic group of Lepa phase (A.D. 625–1000) Quelepa, El Salvador. This identification supports the placement of the Copan material in the Terminal Classic. New data from the Ulua Valley, northwest Honduras, document an extreme southeastern extension of the Terminal Classic Altar Fine Orange ceramic sphere of Seibal. Two networks of interaction linking the southeastern extreme of Mesoamerica and the western Maya area suggested by these ceramic correlations are examined, and the processes involved are discussed.

In this essay I explore the nature, role, and significance of intensive agriculture in the ancient state of Tiwanaku, which was centered in the high plateau of southern Peru and northwestern Bolivia. Significant primary evidence that the state of Tiwanaku systematically reclaimed immense tracts of now abandoned agricultural land around the borders of Lake Titicaca is adduced and evaluated.

I conclude that Tiwanaku was a dynamic, expansive state based squarely on an effective, surplus-producing system of intensive agriculture, that the intensification agricultural production through large scale reclamation of flat, seasonally inundated land along the margins of Lake Titicaca was a prime economic strategy of the Tiwanaku state, and that this strategy was devised and managed by a hierarchically organized, central government.

The seed blower is an instrument typically employed by seed technologists to sort seed types by density. Because of the labor intensive nature of hand separating flotation samples, the seed blower offers archaeologists a new apparatus that enhances the efficiency of initial separation. The blower is described, and initial results of its application to archaeological flotation samples from Louisiana are presented.