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.

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.

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.

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.

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 role of shellfish in the diet of hunter-gatherers in North America is poorly understood. Specifically, the interpretation of freshwater gastropods from archaeological sites as food remains has been a subject of professional debate. Data from the Hayes site (40ML139), a stratified Archaic midden on the Duck River in Tennessee, suggest that freshwater gastropods were procured in considerable quantities and utilized as a food resource. Evidence supporting this interpretation includes (1) quantities of gastropods in the midden, (2) stratigraphic relationship between shell-bearing strata and shell-free strata, and (3) pH analysis of associated sediments. Although gastropods provide relatively little meat and are a poor source of food energy compared to other animal species such as deer, they contain relatively high concentrations of several important vitamins and minerals. Thus, their primary value may have been nutrient content rather than food energy. This consideration, coupled with seasonal variation in their availability, suggests summer and/or fall as most likely periods of gastropod procurement.

Two of the 11 duck decoys found in Lovelock Cave, Nevada, over 60 years ago have recently been dated by the AMS technique. The resulting determinations are 2080 ± 330 B.P. and 2250 ± 230 B.P.

Fishing is a form of predator-prey interaction. As such, the behaviors of fishes can be used to define a restricted range of human behaviors that resulted in their capture. In this report, ecological evidence, fishbone analysis, ethnohistoric reports for the prehistoric Caribbean, experimental fishtrap samples, and ethnographic reports of fishing in other coral waters are brought together in the analysis of prehistoric fishing in the Bahama Archipelago. The analysis is conducted at two levels. First, general fishing strategies are distinguished on the basis of behavioral evidence; and second, specific capture techniques are identified through comparisons with experimental fishtrap samples.

Nine samples from well-dated prehistoric sites in the southwestern United States have been radiocarbon dated in order to determine the accuracy of 14C dates on corn. The results indicate that a normalized and calibrated 14C date on corn is as accurate an estimate of the sample's age as is a 14C date for any other material. This accuracy has implications not only for future selection of 14C samples but also for interpretation of existing dates on corn and on other kinds of materials.

In this paper we summarize the results of six years of passive obsidian collecting in Iowa during which time 31 samples were obtained and subjected to trace element analysis. We find that: (1) 74% of the obsidian originated at the Obsidian Cliff Quarry in Yellowstone National Park, Wyoming; and (2) in contrast with earlier midwestern studies where obsidian was found in ritual contexts on Middle Woodland sites, the Iowa material is associated with a broader temporal range and on sites where ritual use is not evident. A discussion of the analytical methods used is provided as well as of previous research on midwestern obsidian finds.