No description available.

No description available.

No description available.

No description available.

No description available.

The history of archaeological research in the Flagstaff area since 1851 is reviewed. The thesis of this study is that critical analysis of archaeological history can yield significant insights into both the process and the products of archaeological research. These insights in turn may lead to conclusions about the general nature of intellectual disputes and transitions in archaeology, and the validity of particular reconstructions and explanations of prehistoric behavior. The history of archaeological research in the Flagstaff area is broken into nine major divisions, each of which is separated by a significant intellectual or institutional transition. Particular attention is devoted to historical analysis of the period immediately before World War II, when the fundamental concepts and methods of Flagstaff archaeology were developed by Harold Colton and his associates at the Museum of Northern Arizona (MNA). These developments took place during a remarkably prolific period of archaeological investigation designed to disclose a prehistoric sequence of occupation conceived by MNA workers as "one grand history" of the Hopi people. It is argued, on the basis of the historical review, that Flagstaff archaeology, in its specific examples, indeed reveals much about the nature of intellectual disputes and transitions in American archaeology, and demonstrates that knowledge of the prehistoric past can indeed be cumulative. The study concludes with specific recommendations for improving such knowledge in the Flagstaff area, particularly for the issues of chronology and ceramic taxonomy.

Two municipal sludges, one from a highly industrialized city, Chicago, and another from a lesser industrialized, highly agricultural area, Tucson, are compared for barley production on Pima c 1 (Typic torrifluvent). Both sludges were responsible for highly significant additions of Zn, Cu, Ni, Cd and P to the soil each year at the rates of 100mt/ha single and 20mt/ha for 2 years. Nitrogen responses for barley straw and grain were observed from both sludges. Tucson sludge appears to be attractive as a potential fertilizer, not only as an NPK source, but also for its minimal amounts of heavy metals. The Chicago sludge with high levels of heavy metals, particularly Cd, appears unsuited as a fertilizer because of the plant's tendency to take up toxic levels of heavy metals.

The architecture of the modern Hopi pueblo of Oraibi provides important data for the interpretation of prehistoric villages in the American Southwest and elsewhere. Using historic photographs, maps, and other documents, architectural change at Oraibi is examined over a period of almost 80 years, from the early 1870s to 1948, a span that includes an episode of population growth and a substantial and rapid population decline. Because archaeologists make extensive use architecture for a variety of types of prehistoric reconstructions, from population size to social organization, understanding the dynamics of puebloan architecture is important. This study offers several principals which condition architectural dynamics in pueblo-like structures in the Southwest and in other parts of the world. Four types of architectural change are identified at Oraibi: rooms were abandoned, dismantled, rebuilt, and newly constructed. Some changes were the result of the introduction of EuroAmerican technology and governmental policies. An increase in the rate of architectural change, especially new construction and rebuilding, suggests that population was increasing during the late 19th century. Patterns of settlement growth involved both the expansion of existing houses and the construction of new houses. Oraibi architecture, with contiguous rows of houses, may have restricted the development of extended families. After the 1906 Oraibi split, half the population left the village, and in the following decades, population continued to decline. Abandoned houses were often rebuilt and reoccupied by remaining residents. The number of rooms per house declined, especially upper story rooms. The areas of the settlement that continued to be occupied or were reoccupied were those around important ceremonial areas, such as the Main Plaza. The examination of architecture at historic Oraibi supplies links between social processes and architectural dynamics that are applicable to the prehistoric record. Patterns of intra-household architectural change and of settlement growth and abandonment, observed at Oraibi, provide keys to the investigation of similar processes at prehistoric sites.

I studied selenium contamination at Cibola National Wildlife Refuge (Cibola NWR) in the lower Colorado River Valley, California and Arizona. My objectives were to: (1) determine whether local irrigation practices resulted in exposure of fish to toxic levels of selenium; (2) assess the risks to humans of consuming fish from Cibola NWR; (3) assess whether diversity and abundance of fish were related to selenium concentrations or other water quality variables. Water, sediment, fish, crayfish, and aquatic plants were collected from sites which received irrigation return flows and sites which did not. Selenium was below toxic levels at sites receiving irrigation return flows. Selenium was at the toxicity threshhold for fish at two sites receiving water directly from the Colorado River. Concentrations of selenium in fillets of largemouth bass (Micropterus salmoides) from one lake exceeded levels that elicit consumption advisories in California. Most people would be unlikely to consume toxic amounts of fish, but an advisory should be posted to inform people about potential risks. Gill nets were used to determine species diversity and abundance. There were no strong correlations between selenium levels and indices of species richness and equitability. There was a consistent inverse relationship between selenium levels and catch-per-unit-effort for all species combined. This inverse relationship suggested that selenium may be one of a suite of factors limiting abundance of fish. Correlations between indices of species diversity and abundance and values of water quality variables generally were not significant. Temperature and salinity may have limited abundance of some species seasonally. Increases in selenium levels at sites that are already at the toxicity threshhold could impair reproduction of sensitive species. Population declines and concern about edibility of fish could impair the recreational fishery. Therefore, site-specific ways to reduce selenium accumulation should be studied and implemented. Site-specific limnological conditions may play a role in accumulation of selenium to toxic levels, but major sources of selenium appear to be upstream in the Colorado River basin rather than local agricultural practices. Therefore, selenium input to the Colorado River from sources throughout the basin should be monitored and reduced where possible.

The human skeletal remains from Grasshopper Ruin, Arizona, constitute an excellent series for the study of growth and development. A total of 390 subadults, fetal through 18 years of age, have been recovered, in a mortality distribution comparable to that observed in most anthropological populations. Children are extremely sensitive to metabolic upsets during the growth process, and an individual's history of illness is often recorded in his bones and teeth. This research is concerned with reading this record and developing a picture of the biological quality of life during pueblo occupation. On the whole, incidence of skeletal stress markers is low. Just 145 children have one or more markers, indicating a low disease load for the subadult community. Based on ethnographic and clinical records of disease among Southwestern Indians, it is believed that most children without visible stress markers were victims of common and virulent gastrointestinal and upper respiratory infections. Those children with stress markers appear to have been subject to underlying morbid conditions (parasitism, dietary deficiencies) which would have intensified the effects of infectious diseases. In order to determine whether a particular sector of the community was at greater risk, the skeletal sample is partitioned into temporal and spatial groups. The impetus for this analysis derives from a long-standing archaeological research focus: the factors precipitating abandonment. Most evidence points to an environmental change and subsequent shortfall in the normal food supply. Behavioral responses to this stress have been documented, but until this research, no direct measure of the effect on pueblo inhabitants had been devised. Differences in stress marker frequency among temporal groups reveal no clear pattern. When spatial groups are analyzed, children from outliers are found to have significantly greater prevalence of Harris lines, implying a pervasive, recurring stress. These findings are interpreted in light of the unique temporal and spatial placement of outliers, and are believed to be due to a combination of factors including depletion of resources, differential access to resources, and increasing contamination of site environs.